Defiance III Custom Knee Brace


Availability: In stock

Attention Medicare Patients

Recognized as the best ligament knee brace available. Top-of-line protection that is custom fit for your leg. Ideal for athletes who participate in contact sports and want to prevent a knee ligament injury or re-injury.

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Product Details

Product Description

Is the Defiance Custom Brace for me?

Ideal for athletes participating in high collision sports and want complete ACL and ligament protection. Try our Brace Advisor for personalized product recommendations to meet your needs!

Designed to treat and protect:

  • Moderate to severe ACL or PCL instabilities
  • Post ACL or PCL reconstructions
  • ACL / PCL combined instabilities (CI)
  • MCL / LCL instabilities
  • Hyperextension

Best for:

  • Football
  • Motocross
  • Skiing
  • Surfing
  • Wakeboarding

The #1 custom-made knee brace in the world!

The DonJoy Defiance III knee brace is the most popular custom knee brace in the world. In fact, the Defiance III is worn by many professional athletes including members of the US Ski Team, Shawne Merriman of the San Diego Chargers, and World Champion Big Wave Surfer Garrett McNamara. The Defiance III is the strongest knee brace offered by DonJoy and is recommended for athletes participating in high collision sports, like football, motorcross, or skiing. This brace is also ideal for athletes who participate in water sports like surfing, wakeboarding, or kite surfing. People recovering from ACL and other knee ligament surgeries also use this brace on regular basis. If you are involved in non-contact sports, require a lightweight brace to maximize speed, or want a custom brace for everyday wear we recommend the DonJoy A22 custom knee brace.

The DonJoy Defiance III does not require a prescription. We will contact you after you purchase this brace to schedule a fitting appointment. You will also then be able to select your color. View colors available.

Why do I need a custom knee brace?

Wearing a custom knee brace means maximum support is applied where you need it most. When you order a DonJoy Defiance III knee brace, one of the DonJoy bracing experts will come to your house or office to take your measurements. Then DonJoy will custom manufacture a brace that fits your exact measurements. This perfect fit ensures the components of the brace align perfectly with your body ensuring maximum protection and comfort during movement. By wearing a brace that is custom manufactured for your knee, you can play your sport with confidence because you know that you’re less likely to re-injure your knee. In fact DonJoy guarantees it! If you rupture your reconstructed ACL while wearing this brace DonJoy will pay $1,000 towards your surgery. You must register at to be eligible for this guarantee.

The Defiance III knee braces are used to treat or prevent the following injuries

  • Moderate to severe ACL or PCL instabilities
  • Post ACL or PCL reconstructions
  • ACL / PCL combined instabilities (CI)
  • MCL / LCL instabilities
  • Hyperextension

Product Features…and the benefits you’ll experience!

Custom Fabricated Based on Your Measurements
The brace is manufactured to your exact measurements, which means the components of the brace align perfectly with your body ensuring maximum protection and comfort during movement.
Available in 3 Lengths
The DonJoy Defiance is available in 3 lengths: standard, short, and a short calf version for ski boot clearance.
Four-Points of Leverage Dynamic System
This patented technology was developed to reduce the strain on the ACL by distributing the load placed on the ligament via four points. Click here to learn exactly how the Four-Points of Leverage works.
LowPro FourcePoint Hinge Technology
Makes you less likely to suffer from an ACL injury because it reduces the amount of time your knee is in an “at risk position”, enhances the Four-Points of Leverage by increasing the posterior load applied by the brace on the tibia, and improves your natural gait by applying progressive resistance before reaching a firm end point during movement.
Carbon Fiber Frame
This brace is both unbelievably strong and lightweight. You get the protection you need without feeling like you’re being weighed down by your brace.
Anti-migration Supra Condyle Pad
Your knee brace will stay in place no matter how active you are.
Swiveling Strap Tabs
These tabs enable the brace to move with you.
Product Guarantee
This knee brace comes with a lifetime warranty on the frame and hinges, and a 6 month warranty on the soft goods.

Sizing and Measurements

When you order a DonJoy Defiance III knee brace, it will be custom fitted by one of the DonJoy bracing experts in your local area. Upon placing your order, your local expert will contact you to schedule the appointment to take your custom measurements. Please allow up to 5 business days to be contacted. Your brace will be delivered within a week from the date your measurements are taken.

Instructions for Use…how to put on your DonJoy Defiance III knee brace.

To ensure you are properly applying your brace, click on the Video tab above and watch our Fitting Video.

Need Replacement Parts?

Shop DonJoy Defiance replacement parts for kits, undersleeves, straps and pads.

Shop our complete selection of knee braces or browse additional DonJoy products.

*** Please Note***

Because the DonJoy Defiance is custom fitted and sized for your knee, this product does not qualify for the regular BetterBraces 60 Day Money Back Guarantee or other general returns. Remakes will be done for any manufacturing defects free of charge. Rest assured that DonJoy will work with you to make sure you get a satisfactory and comfortable fitting brace.

Attention Hawaii Customers: For those residents of the outer islands other than Oahu, you may be required to visit your local Ortho Clinic to be measured for the brace at your own expense. Or you can be placed on a wait list to meet with one of our Reps that will be flying to your island (lead times will vary and can change).

The DonJoy Defiance is not available outside the United State via If you are outside the U.S. please email us and we will direct you to the proper outlet in your country.

Size Chart & Fit Help
One Size.

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DonJoy Defiance III Custom Knee Brace

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  • Dillin at 1/30/2016 10:04 AM
    • I am a linebacker at my highschool and i had a very bad knee injury and im very active and need lots of support
    • The Defiance would be a good choice for your knee while playing football.
  • Liam Quigley at 1/12/2016 5:56 PM
    • I'm coming off ACL surgery and I'm losing weight. My doctor said I can get one if I want, and I've decided that I want one. Yet, if I'm losing weight, will that effect the fitting of the brace on my knee?
    • With every Custom Knee brace you are allowed one free re-make within 4 months after the original brace is made for girth changes. After that re-make or 4 months the charge for a re-make is $300
  • Alex G at 1/4/2016 5:57 PM
    • How adjustable is this brace? Will it allow for growth in the leg both vertically and horizontally? If it will how much will it allow before you need a new brace?
    • The Defiance is custom made for your knee size as it is and you have 4 months to get one free re-make for girth changes. After 4 months there is a charge for a re-make.
  • mary r at 12/30/2015 7:35 AM
    • final question for the year -My dr has ordered my Defiance yesterday for my left leg- the Ossur Unloader has been recommended for my right leg 95% b on b- how does the defiance with unloader attachment compare to the Ossur Unloader- If I need 2 braces I prefer my braces be functional and the butterfly's match- Its the girly in me and I am 49, stubborn and refuse to have bi-later knee replacements ) .
    • Our custom Defiance can be made with the OA hinge which will unload that compartment with the bone on bone. There is no need to get two different braces. Our Defiance offers the same degree of offload as the Ossur braces and the design of our brace will offer complete stability to the knee
  • Alam at 12/28/2015 1:27 PM
    • I have couple of questions:

      1. Is this item FSA eligible? My FSA account says knee braces are eligible without prescription but this is just an expensive one.

      2. I am avid hiker/backpacker but the rocky terrains has put strain on my knees. I don't have major injury but often wear knee brace to keep my knees together and still I am careful downhill. Is this the better and ultimate solution to protected my knee? Would I be able to hop from rock to rock wearing this like I used to do?
    • The Defiance III is our premier knee brace and offers protection of the knee to injury. The brace is your best choice for knee injury prevention and this brace is customized to fit your knee only so it will be the best fit you can get. this is the same brace that professional football players use so there should be no issues with being able to move normally. We do accept the FSA card because it is a Visa or MC but you should contact your FSA company to find out if this can be used
  • mary r at 12/24/2015 7:08 AM
    • can the tru-pull attachment add on be added after the brace is made?
    • yes
  • mary r at 12/24/2015 6:25 AM
    • I have a Defiance III being made; If a patient loses a lot of weight ,say 50-75 pounds, can the brace be refitted?
    • With all Defiance's, there is a free re-make allowed within 4 months of the original brace being made. After four months it is a $300 charge to get the brace re-made
  • Rafael at 12/22/2015 9:24 PM
    • With the Defiance lll custom knee brace, is suppose to be one size, do the company send a rep to do the measurement?
    • You will need to be in contact with your local sales rep to be measured for the brace
  • Sonia at 12/15/2015 2:13 PM
    • We purchased a custom ACL brace for my 16 year old son 3 months ago and I cant find the care and maintenance information. The brace is starting to smell and I was wondering how I can clean it.
    • Wash the brace with a mild soap and let it air dry. The liners and straps can be removed but I would advise against it and just wash the entire brace
  • Cindie at 12/9/2015 9:36 AM
    • I have OA and one side of each of my knees is nearly bone on bone. We do not want to replace them due to my age. My orthopedic Dr set me up with a rep who sized me and ordered these braces for me. I have had a miniscus tear repaired on 1 knee previously and it is damaged. In reading up on braces I am just curious if this brace will have the off loading necessary to help me or if a different brace would be better?
    • The OA Defiance is the best brace you can have for OA. the brace will offload that side that is bone on bone and should help relieve pain in your knees.
  • Natalia at 12/1/2015 3:49 PM
    • What is the weight of the Defiance 3 compared to that of the new A22?
    • Natalia
      The Defiance weighs 23 oz and the A22 weighs 19.2 oz
  • Matt at 11/21/2015 2:52 PM
    • I am looking to get a defiance 3 for an mcl injury. I am not sure how the strapping works and have seen all strapping on the braces, would that be the same strapping for mcl?
    • Matt
      For a MCL you will want either the ACL strapping or the CI strapping
  • Terry Osowski at 11/19/2015 12:43 PM
    • Can I do squats with the defiance knee brace? Will it flex to 90 degrees or more !
    • Terry
      Yes you can do squats in the knee brace, it should not limit that motion at all
  • Bryce at 11/12/2015 7:10 PM
    • Hi there, what's the difference between the Deiance and the Defiance 3? Which one would be better for Football?
    • Bryce
      The Defiance and D3 are frame styles for the same brace. The D3 frame has a swoop or curve in the thigh cuff on the inside of the leg and is good for someone who has big thighs or if you are wearing braces on both legs. The Defiance frame does not have the swoop and the thigh cuff go straight across the top of the thigh. Either one can be used with a FB player
  • Phillip at 11/1/2015 3:35 PM
    • I've had 2 surgeries on my right knee for torn a meniscus in 2007 medial in 2012 lateral and medial. I just found out I have another meniscus tear in the same knee. Would you recommend this brace? I coach high school football and need something strong enough to hold up if im hit in the knee during practice or games.
    • Phillip
      The Don Joy Custom Defiance III Knee Brace is our premier knee brace that is worn by professional football players. This brace will provide the maximum support to your knee and be able to withstand any contact that may happen. The brace is custom made for your leg only and has a lifetime warranty on the frame and hinges.
  • JoJo Hernandez at 10/25/2015 11:41 PM
    • Will this help me while I'm playing soccer?
    • JoJo
      Yes the Defiance can be worn with any sport. You might want to go with a short calf option to make sure you can wear your shin guards without any interference from the brace
  • Paul plante at 10/24/2015 5:09 PM
    • What can you tell me about speed and agility reduction in a running back while wearing the defiance brace as prevention to knee injuries.
    • Paul
      The Defiance should not restrict your performance in any way, while protecting your knee from ACL injury. The Defiance is worn by many NFL players to protect their knees from injury
  • Zena Dean at 10/24/2015 1:02 PM
    • My 12 year old daughter tore her ACL during a soccer game. The surgeon says that she can not get surgery until her growth plates have stop growing (possibly over a year from now). Can this brace be used prior to surgery to support her ACL and prevent further damage while playing soccer?
    • Zena
      Yes the Defiance would be the best brace for her and it can be worn before surgery
  • Adrián Carro at 10/17/2015 5:12 PM
    • I suffered a patellar tendon rupture. This brace works for me?
    • Adrian
      The Custom Defiance is a functional knee brace that provides maximal support to the ligamentous structures of the knee and provides protection for further injury. You may want to look at the Tru-Pull Advanced system as well. This brace is for those who have suffered a injury to the patella and/or have chronic patellar dislocations.
  • Anna J. at 10/10/2015 10:02 PM
    • Hi,
      I had a knee dislocation, and I tore my popliteal artery- which required a graft to repair it, I also have multiple tears - ACL, PCL, LCL, popliteus tendon, medial retinaculum, and bilateral gastrocnemius tendon. lateral meniscus tears - all in my right knee. My left knee has an ACL that is attenuated - I'm unsure if it is actually torn. What would be the best braces for my knees? I was looking at the Defiance /the A22/ the full force/ or the legend SE for my right knee - I would like something that gives the best support/protection against re-injury. For the left I am unsure - I just need something to alleviate the knee pain and gives me the best protection from re-injury on my left knee.
    • Anna
      The Defiance sounds like it would be the best brace for both knees. The Defiance is custom made for your knee only and provides the most protection for re-injury.
  • MaryGrace at 10/2/2015 5:07 AM
    • I had a lateral retinacular release and half my meniscus removed. The lateral retinacular release was suppose to help with the fact that my knee cap rotates excessively and when my knee cap rotated outwards it would pull on ligaments in my knee. i also have tendinitis in my knee and have generally week ligaments. I've been to countless hours of physical therapy to "strengthen" my knee but nothing seems to help and i feel as if I'm doing more damage than good. I'm a swimmer, water polo player I also snowboard, but for water polo and swim we do a lot of land stuff like 6 mile runs and we run the football stadium bleachers and even the hill behind the high school and workout in our weight room. I just want to know if there is a brace out there that would help give me support to continue to play my sports in less pain.
    • Mary
      I would suggest the Reaction web Knee brace. This brace's design is meant to absorb force put on the knee and disperse it away from the front of the knee to decrease anterior knee pain. The brace is low profile and light weight.
  • Patrick at 9/28/2015 11:23 AM
    • I have a script from my orthopedic surgeon for a new knee brace. How do I use this in the process of ordering a new one?
    • n order to have insurance pay for your brace you will need to get in contact with the local Don Joy rep in your area. The rep can help with ordering and billing your insurance.
  • Paul at 9/19/2015 8:19 PM
  • Brian at 9/19/2015 5:20 PM
    • I have a meniscus tear that I would like to rehab before trying surgery. I have taken up tennis and I am also on a diet where I have lost 100lbs and will likely loose 70 to 100 more. Would this brace help relieve some of the pressure on the tear while rehabilitating, and would I be able to adjust this brace after the weight loss?
    • Brian
      The Defiance is a custom knee brace and can be made with a OA hinge that will offload the side of your knee that has the meniscus tear. This offloding will help decrease pain in that area while wearing the brace. When ordering the Defiance we give you four months in which you can get 1 free re-make if your leg changes girth. After 4 months it is a $320 charge.
  • Chain at 9/17/2015 7:56 PM
    • I recently tore my ACL and I'm looking for a sports brace I can get in a gol color can you guys do this or do you know of a place where I can get this?
    • Chain
      The Custom Defiance does come in a variety of colors, and metallic gold is one of them. Please contact your local Don Joy Sales rep to be measured for the custom brace.
  • jessie at 9/6/2015 11:25 AM
    • Hi I just had a high tibial osteotomy And was wondering if this brace would help me when I play football
    • Jessie
      Yes the Defiance III would be the right brace for you to wear while playing football. The brace is custom made for your knee only and will prevent any further knee injuries while allowing you to be completley functional.
  • Kristi at 8/27/2015 12:06 PM
    • I had my ACL and MCL repaired this spring. I am planning on skiing this winter and am wondering which don joy knee brace would be the best for my situation.
    • Hello,

      Thank you for contacting Betterbraces. Your ACL brace options are either a Custom Defiance or an Off the Shelf Armor. Both these brace are the most rigid recommended for contact sports where a collison is highly likely to happen. Please contact us and we can explain the options you have on both braces. 1-800-553-6019.

      Have a Great Day.
  • Melissa at 8/23/2015 11:13 AM
    • Just got a acl defiance brace and it fits well however velcro on the bottom 2 straps will not hold with my activity. I use the brace mainly for kiteboarding jumping. Lots of hard contact and being drug around. Any advice? I'm confident the brace is not defective it just doesn't seem able to handle all the hard contact activity. In addition the padding inside will not stay on place and the velcro inside the brace irritates my skin. My husband and I are considering using epoxy to hold the foam in place. Any advice on that? This was the first day of using the brace. I have tried other brands other than donjoy with similar problems. Since this was the cream of the crop brace and advertised as water tolerant brace I was hopefull it would be the brace for me. :(
    • Hello,

      Thank you for contacting Donjoy. I recommend you contact your local Donjoy Representative who can help with adjusting your brace. You may need different type of straps, Legend straps grip better and are recommended for athletics. We also have replacement velcro that can be changed out on your brace. See the link below to locate your nearest rep.

      Have a Great Day.
  • Kate foster at 8/9/2015 12:06 PM
    • I have a nondisplaceced fx inferior patella, 1 week old today what would be best brace for me urgent thankyou
    • Kate
      I suggest asking your physician what type of brace you should be wearing for that injury. Some doctors want you in a knee immobilizer for a fx patella, so that your knee does not bend
  • Jacki at 8/8/2015 5:19 PM
    • I have left knee pain that basically runs right down the middle of knee, when I climbs stairs, or do squatting or lunging exercises...... Which brace would be better for me?
    • Jacki
      I would suggest the Webtech Knee Brace. This brace helps reduce anterior knee pain while you are doing all of those activities you listed
  • Maddy at 8/8/2015 10:41 AM
    • Hi. Two years ago I shattered my Tibia Plateau and partially tore my ACL. I have had 2 surgeries to one fix it, and two get hardware removed and a clean out. I am still experiencing complete hyper extension in my left knee almost 50% more than my left. I am an avid Snowboarder, Soccer Player, Hockey Player, and cyclist. I was told to get a custom as my legs are real little. What would you all recommend? Also, doe the Defiance one come in other colors than just red?
    • Maddy
      The defiance is a custom brace so it would be made for your leg only and yes there are different colors to choose from.
      When you meet with a sales rep they can go over with you what would be best for you based on your injuries and what you want to do in the brace(Snowboard etc.)
  • Bryant at 7/31/2015 7:35 PM
    • I am recovering from ACL surgery and I need to purchase a custom fit knee brace to wear. I play basketball and football so will you recommend the brace that will best fit my needs?
    • The Defiance III Custom Knee Brace is custom fit for your leg, ideal for athletes who participate in contact sports and want to prevent a knee ligament injury or re-injury. It is custom made for your leg only and it has the combined technology of our 4 Points of Leverage Strapping and the fourcepoint hinge which both have been clinically proven to reduce ACL tears up to 50%.
  • David 808 at 6/17/2015 7:28 PM
    • Does the DonJoy Defiance provide a distraction (separation ) of the knee joint, for use on osteoarthritis knee pain?
    • The DonJoy Defiance has the option to get the OA hinge. The bilateral hinge bars offers support for ligament instabilities and work in along with the telescoping condyle pad which gives you the ability to control the amount of offload in the brace, to provide relief for your osteoarthritis. When you are being measured for the brace by the DJO Sales Rep they will go over your injury and help to determine if this option is best suited for your needs,
  • Mike at 4/26/2015 1:50 PM
    • I am a Police Officer and was injured in the line of duty. I completely tore my ACL, both Meniscus were torn, and I have a lot of kneecap instability along with Stage 1 Arthritis. I had surgery Jan 2015 to repair the ACL and meniscus, and am still going through physical therapy. However, the brace that my Doctor ordered hurts my kneecap, and I am going to request another brace. I am leaning towards the Defiance because I not only want the best, but I also don't want to re-injure everything when I am able to return to duty. Is this the best brace for my injuries?
    • Yes the Defiance is the best brace for your situation. You can get a tru-Pull attachment installed on the brace to help with patellar instability if you want as well. The Defiance is our strongest brace and would hold during the work you do.
  • Bryan at 3/18/2015 12:06 PM
    • I recently tore my ACL and was looking into a knee brace to support it before I get surgery. Would the defiance III be a brace I would wear pre/post surgery? And would it allow me to play soccer while wearing it?
    • The Defiance can be worn before surgery and after. You will just need to make sure that you are measured when you knee is not swollen or atrophied, be cause there is only one free re-make within four months. Usually if the brace is fit before surgery and you have no swelling then by the time you are ready to wear the brace after surgery is will still fit. There is no guarantee that you can play soccer even with the brace before surgery. The brace will protect the knee but cannot make up for the strength in your knee and leg muscles that is lost after injury.
  • Paige at 2/21/2015 10:07 AM
    • I had surgery on my right knee and would like to return to playing soccer, softball, and basketball. However in soccer it is my dominant kicking leg and I am a strong kicker. Which kind/type of brace would be the best for these sports?
    • The Defiance is our best knee brace for someone who needs to return to sports activity. The brace is made specifically for your knee only and has our fourcepoint technology to help protect against re-injury.
  • Alan at 12/9/2014 7:24 AM
    • I have a knee brace that I purchased in 1996. How do I obtain replacement pads for it?
    • If it is a Custom brace there is a small sticker on the inside of the frame right below the outside condyle pad. The sticker has the brace serial number on it. You will need this number and can order replacement softgoods by calling 800-336-6569, option 1, option 1, and option 1 for Defiance orders. If you do not have a Defiance you can find your brace on our website and get replacement parts there.
  • Javier at 12/1/2014 10:41 PM
    • My son's MRI has detected a complete tear of his ACL and a TINY tear in his meniscus. There is no other damage to his knee. We are weighing options but are looking at the possibility of wresting and/or baseball for this his senior year. Any recommendations on knee braces. If any metal is showing it would have to be padded over.
    • Javier
      If your son is not having surgery then he wold have to wear one of our rigid knee braces to have any chance to play sports. DonJoy Full Force Ligament Knee Brace This brace is patient ready and can be ordered off this website.
  • Aspen at 10/24/2014 7:11 PM
    • Hi there,

      I tore my ACL and MCL over the summer and was wondering if the Defiance III brace would work for ice hockey and pole vaulting? I'm also only 5'2 so I was wondering whether a Short thigh or a Standard thigh length would be better?
    • The Defiance would work with both of those sports and yes you would want the short thigh and shot calf on the frame.
  • Justin at 6/9/2014 6:50 PM
    • I am an offensive tackle who has <a href="">Osgood Schlatter</a>. Will this brace reduce the pain and prevent further injury?
    • For Osgood Schlatter you would find the most comfort with a buttress around the lower portion of your knee. A brace such as the DonJoy Performer Patella Knee support would be a good option. Other options for you include the Reaction WEB knee brace or the DonJoy Cross Strap.
  • Alexandra Fox at 5/27/2014 12:26 PM
    • What is the best brace for a women's soccer player when is returning from Acl surgery?
    • The best brace for a female soccer player returning to play from an ACL injury would be one of 2 braces. The Defiance, or the FullFource/FemaleFource. Both come with a short calf option (Great for shin guard accommodation) and the FourcePoint hinge, which gives extra protection to the ACL.

      The protection level is the same. The difference is the Defiance line is custom fit, and has a life time warranty on the frame and hinges. Also, The Defiance line is a carbon fiber material. The FullFource/FemaleFource is aircraft grade aluminum and has a 1 year warranty on the frame and hinges.
  • Jimmy at 5/26/2014 12:09 PM
    • My patella ligament dislocates. This brace looks great, but is there something that would be able to secure my patella?
    • The Defiance III brace can have a tru-pull attachment add on to allow for patellar stability.
  • Philip at 3/25/2014 2:04 PM
    • Would this be a good choice for tennis or would the Full Force be a better option for non contact sports?
    • Both braces would work for playing tennis. The differences are that the Custom is made of a carbon composite has a lifetime warranty on the hinges and frame and is made specifically for your leg for the best fit. The full force is made of aluminum has a one year warranty on the frame and hinges and is patient ready so you only need three measurements and look for you size in a sizing chart.
  • Angelo at 2/17/2014 7:29 AM
    • I have had an ACL reconstruction surgery after It was fully torn, and I seem to have re-injured the same knee a year later with a minor tear.

      I practice Parkour and variations of Gymnastics, that typically involve myself landing prominently and only on my injured knee (Hard and forceful landings).

      I do not want to sacrifice speed/power/flexibility or anything that hinders my movement as much as possible, but I still want full protection for my torn ACL.

      So, my question is, which Knee brace should I order? A Donjoy Defiance or a Donjoy Fullforce?
    • Thank you for your question. The 2 major differences between the FullFource and the Defiance line are going to be 1. The materials and 2. The warranties. The FullFource is made of aircraft grade aluminum and the Defiance is a carbon fiber. The warranty on the FullFource frame and hinges is 1 year and the Defiance has a lifetime warrant on the frame and hinges. Both braces will be light weight weighing about 22 ounces, allow full range of motion and protection to the ACL. The Defiance allows for more variation in color and styles as well as a custom fit.
  • Steve at 1/29/2014 6:31 PM
    • Would you recommend this brace to someone who is an avid basketball player who has never had any ligament surgery (or injury) before, but who is looking to protect his knee ligaments in general?
    • Yes, this brace can and is used to prevent injury to the knee. Both the Four points of leverage strapping system and the FourcePoint hinge technology available with the brace have been clinically proven to prevent ACL tears up to 50%
  • Eric at 12/28/2013 9:09 PM
    • I have a partially torn ACLU, which my doctor cleaned up, but said he didn't need to replace as he could not make it fail during surgery. However, I did have a lateral meniscus transplant, ACI and distal femur osteotomy in the same knee last month. My doctor said I may want to go with the Defiance OA in order to keep the lateral side "jacked open" during sports. I don't see the defiance OA on this site though and wondering how to order. Thanks. Also, do you agree this is the best brace?
    • This will be an excellent brace for you ACL and meniscus problems. You would order the DonJoy Defiance brace. When the rep contacts you, you would let them know it is going to be an OA brace.
  • Mandie at 12/13/2013 1:16 PM
    • Hi, I partially tore my ACL in my left knee in September. In October I had acl reconstruction. I'm hoping to be back to playing soccer in the late spring but I want to have a knee brace for support and more peace of mind. what do you suggest is the best? I really don’t want to tear it again.
    • The Defiance Brace is the best knee brace for you to wear after a ACL recontruction to protect the knee. It is custom made for your leg only and it has the combined technology of our 4 Points of Leverage Strapping and the fourcepoint hinge which both have been clinically proven to reduce ACL tears up to 50%. If you are interested in getting this brace you can get in contact with your local DJO rep, either through your doctors office of you can contact product support at (888) 405-3251 and we would be happy to get that information for you.
  • Adam c gargir at 12/11/2013 10:59 AM
    • How does the defiance for OA, compare to the other custom OA braces. I am a police officer, and need a reliable brace, that can with stand the riggers of my job.
    • Adam
      The Defiance OA brace is our best OA brace. It is measured specifically for your leg only to maximize the best fit. It also can accommodate up to 10 degrees of correction where our off the shelf braces will only accommodate 3-7 degrees. The frame is made of a strong carbon composite that is lightweight and durable. This is the same frame that we use for pro football players braces.
  • Dat at 12/10/2013 12:25 AM
    • I am a volleyball player and have a torn ACL and cartilage damage. I am a senior so I decided to play my last season in high school with a bad knee. My doctor said that if I want to play; my cartilage might get too much damaged that they won't be able to fix it. So I wonder if this knee brace will help me preventing that from happening and also help my knee get stronger. Do I have to wear it while walking too or just when I run, practice, and compete? Thank you
    • The defiance brace is designed primarily for ligament instabilities. This would be a great brace for your ACL injury. If the cartilage damage is on one side more than the other, you may want to look at a brace from the DonJoy OA line. The OA braces are designed for Osteoarthritis and meniscus injuries and can be combines with ligament strapping for the ACL.
  • Chris at 11/14/2013 5:02 PM
    • My son just tore his ACL and MCL playing High School Football. He is an Offensive Lineman and weighs 240 lbs. Would the Defiance Custom Brace provide the best protection available for an Offensive Lineman?
    • The Defiance III would be an excellent choice for your son. This brace comes standard with the swooping thigh and swiveling tabs, which are great for athletes. It would be recommended that you also go with the metal power caps and reinforced fiber frame since your son plays a contact sport. If you would like to have your son measured, you can give us a call to get the name and number for your local rep.
  • The Long at 10/14/2013 12:06 AM
    • I'm participating in muay thai boxing. I had acl surgery. Is this a good brace for me when I start full training again? I also live in Vietnam and my uncle lives in the US. How can I get this brace?
    • The Defiance III custom knee brace is our best brace for return to high activity after ACL reconstruction. If you wanted to get this brace you would need to be measured by either a medical professional or a DJO representative. We do have other options that would only require a few measurement that you could do on your own and your Uncle could order the brace for you in the US. Take a look at the Armor or the Full Force Both of these braces are used for contact sports and have the same Four-Points of Leverage and FourcePoint hinge technology that reduce re-injury of the ACL by 50%, that the Defiance III does. You would only need to measure 6 inches above your kneecap, 6 inches below the mid knee and at the knee joint and find the size that corresponds to those measurements.
  • Ed at 9/30/2013 9:28 AM
    • I'm a offensive lineman a sophomore who was on varsity i dislocated my patella 5 times and I'm getting MPFL reconstructive surgery is this brace a good option for me?
    • The Defiance Knee Brace is our custom brace used primarily for prevention of ligament injuries and post ligament injuries. This is a good brace for you in that preventative aspect. I recommend you add the tru-pull attachment to this brace to support the patella.
  • Race at 9/25/2013 12:13 AM
    • Hey, I am looking for a brace for snowboarding. I tore my ACL and got surgery on it and would like a brace to feel more comfortable. I am looking at 3 different braces from you guys and wondering which would be the best. The Defiance III, the Armor ski version or full force? I am sure the Defiance is the better one but do i need a custom brace over an off the shelf and is it worth the 300 bucks more or so? If i can't afford the custom brace which of the two would be better for snowboarding? The Armor or Full Force? Thanks
    • Both the Armor and the Fullforce (as well as our defiance III) come with ForcePoint hinge which I would recommend you get. It's an added ACL protection option. The armor is the strongest brace we make at .125" thick. I would first consider that brace over the FullForce for you. We recommend this brace for contact sports (and snowboarding can be as much a contact sport as some other traditional sports). Both the FullForce and the Armor come in a short option; depending on how tall you are and how high your boots come up you may think about going short. a standard brace will be 18" in length and the short will be 17" bringing it up on the calf an inch higher.
  • Yacine Laghmari at 9/12/2013 8:44 AM
    • My name is Yacine and I'm a football player in Sweden. I play as an offensive lineman and I'm currently looking for two braces, one for each leg.

      I've torn my <a href="">PCL ligament</a> in my right knee and I'm suffering from overloading in my left knee. Therefore, I'm currently looking for two knee braces. One brace that will help my right knee with the PCL rupture and one that will help my left knee from getting overloaded and risking to tear something off.
    • The Defiance III would fit you the best it is custom made to your leg's specifications, these are the same braces NFL Lineman wear to protect their knees.
  • Alessio at 8/8/2013 1:38 AM
    • Hi There,

      6 weeks ago I had an operation to reconstruct and reattach pretty much my entire PosteroLateral Corner of my knee as well as my ACL. The Surgery was successful. Doctor has however said that it will be difficult for me to Play Soccer/Football again due to the Pivoting? (I know this would only be in over a years time). He said mainly due to the fact that the PosteroLateral Corner was very badly damaged. Does the Donjoy Defiance III Custom Knee Brace protect the PosteroLateral Corner of the knee and will it allow me to play my sports again? Or is there a better knee brace for this injury?
    • The Defiance Knee Brace is a Custom ACL Brace. We also have Off the Shelf ACL Braces, the Armor, and Full-Fource, all feature the FourcePoint hinge which prevent the knee to go into hyperextension.
  • Amber at 8/6/2013 9:28 AM
    • I'm looking for a good ACL brace (for my partially torn reconstructed ACL) that would last playing beach volleyball without the sand ruining the hinges. This one looks like it has a slightly different hinge than my current Dongjoy Knee Brace (Donjoy Armour) - will this brace, or another Donjoy brace work well in the sand without getting ruined? Another one I checked out was the Defiance III Female Fource.
    • Anyone of our braces can be used for beach volleyball. I recommend rinsing the brace out with water after use, to make sure all sand is removed from the hinge. I recommend the Armor, due to the diving/hitting the ground, this brace frame is more rigid and will hold up.
  • Francesca at 8/5/2013 8:57 AM
    • I am an 'at risk female' with an ACL reconstruction on both my left and right knees. I play Ultimate Frisbee and need to be able to cut, sprint, jump, change direction, dive ...etc. Can you wear a brace on both knees and still move freely?
    • Yes, I recommend wearing a ACL Knee Brace to protect your recent ACL reconstruction. You have the option of our Custom Defiance or our off the shelf knee brace Armor.
  • Chris at 7/16/2013 10:29 AM
    • I have an old Townsend custom brace but it made my knee sore after use as I wasn't able to bend my knee all the way while playing sports due to the straps not being able to flex due to flexing of my calf . Is the Defiance III designed for full range of motion for the knee?
    • Yes, all our off the shelf bracing and Defiance Custom Brace allows for Full Range of Motion. If you would like to limit the range you have the brace is adjustable by inserting flexion stops into the hinge.

  • BJJ at 7/1/2013 5:52 AM
  • rithin at 6/23/2013 7:03 AM
  • Fernando at 3/27/2013 5:28 PM
    • I have my ACL totally torn and my MCL partially torn and no plans to have them operated for the next year. I’ve been doing physiotherapy regularly and I need a brace that support my landings (I’m a skydiver and I need to run some steeps in my landings). Which brace is more recommended for my case? Thank you very much.
    • The DonJoy Defiance Custom Brace with Fourcepoint hinge and ACL strapping sequence would be highly recommended for your activity and injury.
  • RFR at 3/19/2013 3:22 PM
    • I am looking for the best knee brace you have that can be used for skiing and other sports. I have had two ACL reconstructive surgeries on my right knee in '91 and '06. Can you provide both a custom model and off the shelf model?

    • Yes, The Defiance III with FourcePoint hinge, for off the shelf, the Armor with FourcePoint hinge and a short calf.
  • Sally at 2/18/2013 7:40 AM
    • I would appreciate a printed copy of how to put the knee brace on as the
      video instructions are hard for me to follow. Thank you
    • Hello, Sally -

      You were emailed a printed copy of instructions on how to put the brace on.

      Thank you and have a wonderful day!
  • Undine at 2/14/2013 10:31 PM
    • How long does it take to get a brace resized?
    • Normally the turn around time is 24-48 hours. Once you work with your sales rep or health care provider in getting the appropriate measurements, it will be submitted and made either the day of or the following day (depending on what time of day the request is made). It is then shipped out to you once it has been made.
  • Jake Smith at 1/25/2013 9:15 PM
    • Will the straps still grab as tight after being in and out of the lake all summer long?
    • The straps should not be affected as the grip is made of hook velcro. However, if a brace is worn in water (pool, lake, ocean, etc), we recommend that after use, it be rinsed under tap water to remove any debris, salt, chlorine so as not to compromise the integrity of the straps and brace.
  • Karen Shipman at 11/21/2012 12:08 PM
    • A custom knee brace is a big financial investment, can you tell me how many years the brace is expected to last?
    • Our custom braces are built to have an indefinite shelf life. We have a life-long guarantee on the hinge and frame and a 6 month guarantee on the soft goods (straps, pads). It's an extremely durable brace - many professional athletes use them in collision sports such as football.
  • Francis at 11/11/2012 6:29 AM
    • I tore my meniscus during pre season football and there was a servere risk of my ACL being torn. Fortunately, it wasn't and I had a bucket handle torn meniscus. Would this brace help while playing football for protecting the knee?
    • Yes, it is recommended for prophylactic knee ligament support, the ACL in particular. If you prefer to use a standard (non-custom) knee brace that protects and supports the knee ligaments, we recommend either of the following: the Legend, 4titude, Armor, or Full Force.

  • Bob at 3/25/2012 2:16 PM
    • How do you wear soccer shin guards with one of these knee braces?
    • The brace comes in two different calf lengths. If you are concerned with shin guard clearance, I suggest ordering the "short calf" version.

  • jeff at 3/19/2012 2:18 PM
    • Is the defiance III suitable for playing basketball. I had an acl injury and a meniscus tear.
    • Yes, the Defiance III is a great brace for basketball among many other sports and activities.
  • Chris at 11/2/2011 2:02 PM
    • Hi,
      I've used both the CTi and DJ Full Force knee brace. I like the way the DJ brace upper attachement grabs the top of the tibia and I find that it doesn't slide down as much as the CTI. However, during kitesurfing I want a brace that is very stiff laterally and I find the stiffness of the CTI to be superior to the Full Force though. How would the lateral support of the Defiance compare to a CTI and a Full Force brace?

      And would a short calf be less prone to migration as it would have both straps above the bulk of the calf muscle? How does the support and stiffness vary with the calf length option?
    • The Defiance is made of carbon fiber and it the stiffest brace we have. We have an additional order option to reinforce the brace with another layer of carbon fiber if you want. The reinforced frame is an option we market to our collegiate and professional football players as well as other high contact or extreme sports athletes. The Defiance also has our 4-points-of-leverage system, which helps with fit and suspension. But, most importantly it help prevents anterior tibial translation, which can injure the ACL. Depending on you calf shape and size, the short calf may be helpful to prevent migration. The shorter calf length will not compromise the stiffness of the brace.

      Another option for an off the shelf brace is our Armor. It is made of aircraft grade aluminum and is our strongest off the shelf brace.

  • Laurie at 8/27/2011 9:02 AM
    • Is the knee brace waterproof?
    • It's ok to take in the water. Just make sure you rinse the hinges and softgoods out with fresh water, let it dry, and re-lubricate with a teflon dry lubricant. Usually a bicycle chain lubricant will work.
  • andrew at 8/15/2011 4:49 PM
    • How do you clean or wash the defiance III knee brace?
    • Keep soft goods attached and hand wash with mild detergent and air dry. Some patients will just wear it in the shower or dunk it in a soapy water tub and a fresh water tub after each use.
  • Kyle at 6/1/2011 10:37 PM
    • I have just had my 4th acl surgery. I am 16 years old and love sports and never see myself quitting. I have had 3 surgeries on my left knee including the one I had 6 weeks ago. My other knee braces don't help me because my left knee is very loose and my tibia slides to the inside very easily and a lot. Can your knee braces help to make that stop? The other surgery I had on my left knee made my knee do the same thing that I just explained and I did just as I was told in physical therapy and by my doctor who is ranked in the top 10 surgeons in Ohio. If the Donjoy knee brace can't help me then there is no other brace that can help me. I know this because I have tried on every brace imaginable. My sporting career is on the line. Can the Donjoy knee brace stop the movement of my tibia?
    • The best Donjoy Knee Brace for your condition is the Custom Defiance ACL Brace with Fourcepoint Hinges. The frame design combined with the only hinge clinically proven to protect the ACL would be your best choice. In saying that, it is part of the equation. The surgery, therapy, your compliance in applying the brace properly and wearing it at all times is important. It sounds like you've had a long history of injuries so this is something you should discuss with your surgeon and family. However, to answer your question, this would be your best choice.
  • Tammy at 4/18/2011 2:05 PM
    • Does this brace need to be worn underneath clothing? Or can it be worn over jeans or any other type of pants?
    • It should be worn under clothing if possible. You will not be able to wear it under tight jeans, so wear it over the jeans in that case.
  • John at 3/7/2011 1:36 PM
    • Can I use the brace in the water? (Water Skiing, Surfing, etc.)
    • Yes, you may use the Donjoy Defiance III in water. Uust rinse it with fresh water after each use and air dry. You may use dry Teflon lubricant to prevent hinge wear and tear such as Triflow or White Lightening.
  • Frank at 12/13/2010 8:28 PM
    • I have the townsend full shell knee brace. The problem is that the brace slides down when ever I run with it in football and it's too heavy. Would DonJoy Defiance III be better instead of the Townsend Full shell knee brace?
    • The DonJoy Defiance III will fit better than any off the shelf brace due to the fact that the brace will be custom built for your leg contours.
  • Zach at 9/18/2010 1:44 PM
    • I am a Wide Receiver and Outfielder who has had 2 acl reconstructions on my right knee, I was curious as to what brace you think would be best for me? I am looking for a light weight brace that will give me maximum stability and protection of my acl, while not sacrificing any speed. I guess I have narrowed it down to either the Full Force or the Custom Defiance (unless you recommend something else), but I'm curious as to how much the Defiance weighs. Also another concern is I am 7 months post op, so I am just now starting to lift heavy in my legs again, because of this I'm concerned about outgrowing the brace. Would gains from weight lifting be enough to cause a need for a change in size in the braces that are not custom fitted, based on the intervals of measurement and sizing? With all this being said please let me know what you recommend. Lastly, I was wondering if there is any location near Charlotte, NC that I could actually go and try these on and see for myself. Please let me know! Thanks,

    • The Defiance weighs approx 20 ounces, while the Full Force weighs 22 ounces.

      The Defiance can be remade to new measurements within 4 months of the brace's manufacture date, after that it can be remade at a lower price.

      At this time we are a retail website only, with no physical retail location.
  • scott at 7/31/2010 10:44 PM
    • Is a custom fit brace good for a 16 year old boy that is still growing?
    • The DonJoy Defiance III Custom Knee Brace is ideal for a growing patient. First of all, you'll get a size change remake within 4 months, free of charge. Secondly when the patient does grow beyond the brace measurements, a remake will cost significantly less than ordering another off the shelf brace.
  • Jason at 5/19/2010 2:47 PM
    • Do you need a prescription?
    • No, you do not need a prescription to order the Defiance. You can place the order online and once it has been ordered, a DonJoy Sales Representative in your area will contact you to schedule an appointment to be measured for the brace.
Reviews (21)


DonJoy Defiance III Custom Knee Brace

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A must have for bad knees

Reviewed by:
I've had an original Defiance since a 1992 ACL reconstruction. After nearly 1000 days on the slopes over the years, the brace remains the mainstay of my ski gear. While I've slowed down with age, this brace has allowed me to maintain my passion for skiing with confidence.
Posted on January 2, 2016
Would you recommend this product to a friend?Definitely yes

Great product, gave me back my mobility!

Reviewed by:
I have osteoarthritis in both knees. I am bone on bone on my right knee, but stubbornly have refused to give up tennis - I play 3-4 times per week. After two hours of playing I would be in considerable pain. I received my Defiance III last week and haven't felt any pain at all! I played for 3.5 hours last Friday and another 2 hours on Saturday, then walked five miles on Sunday with absolutely no pain at all! While nothing short of a new knee will fix the problem, this brace has really helped me out!
A word of caution though, the knee sleeve is a must as (at least with me) the top strap tends to chafe. Also, if you are going to wear this under your pants, make sure they are baggy, the hinges tend to stick out a bit.
Posted on October 1, 2015

Reliable Results

Reviewed by:
Simply a great product.
Posted on May 11, 2015

saved my life!

Reviewed by:
I ve had two total knee rebuilds (acl). first time took out my knee playing football in highschool. second time playing softball at 42. ihad to have my knee rebuilt. Since high school ive had five braces. I thought i was done for good doing sports. I finally spent the money bought a donjoy. Dont spend the money on two or three cheap ones. I promise you you will not be disapointed. At 45 im playong softball, coaching youth sports, hiking etc. this brace has truely given me back what i had thought i had lost.....thank you Donjoy!! you wont be dissapointed!! PLAY ON!
Posted on April 1, 2015

Amazing relief

Reviewed by:
It fit like a glove and never bothered me to wear it at all. Felt comfortable right away. Had meniscus surgery and didn't think I'd be able to run again, but this brace made it possible.
Posted on November 4, 2014


Reviewed by:
I bought this knee brace a little over 2 years ago and i had severe knee pain as a high school football player. I bought this brace and wore it for about 8 months and NOW i don't even have to wear it anymore! It's as almost as if the brace fixed my knee! INCREDIBLE!
Posted on August 27, 2014

My DonJoy Defiance is probably one of the original ones

Reviewed by:
If it wasn't for my Defiance knee brace I wouldn't be able to play a lot of the sports I love. At the age of 47 I am back playing softball, volleyball and other activities that used to worry me with my knee stability.

I don't know why anyone wouldn't take advantage of the stabilization advantage of these DonJoy knee braces.

I'd love to know if my old WC claim would support me getting an upgrade for the new Defiance III, but even so I might look into it anyway.
Posted on June 23, 2014


Reviewed by:
The DonJoy Defiance Knee Brace is meant to support and protect the knee, but primarily and specifically the ACL. Athletes will rely and depend on a brace such as the DonJoy Defiance Knee Brace after suffering from a large injury that generally resulted in a reconstruction surgery. I, myself suffered a detrimental injury to my knee, I was looking for the best quality brace in which I could rely on while slowing going back into sports, specifically soccer. The brace begins halfway up my shin and ends near the middle of my quad. In the brace I feel confident going into slide tackles and simple things such as sprinting and pivoting/cutting, even after nearly a year of rehabbing my knee post reconstruction surgery. The brace, although said to have been measured just for me leg, seems too big at times and never generally stays in one place. Running in the brace feels unnatural and appears to weigh me down. I don’t receive full range of motion in the brace and it appears a bit bulky at time. Although I have discovered things I’m not so thrilled about with the brace, I’m very thankful for it. With the guarantee that you will not re-injure the ACL, I feel beyond secure and safe. Definitely recommend it to any young athlete, or any athlete in fact, who is interested in playing at a high level of play after suffering from a serious knee injury.
Posted on April 3, 2014

Good support

Reviewed by:
I tore my left ACL and was given this brace to play basketball in post surgery. At first the brace rubbed and left skin irritated but was easily broken into. I don't even notice that I'm wearing a brace, it is that confortable. The only downside to this brace is it squeaks loudly like it needs oiled. Also, the plastic that holds the straps came loose and it pops in and out when I run. Other than those downsides, it's a great brace.
Posted on January 27, 2014

Still walking and Love it!

Reviewed by:
Back in 1999 I tore my ACL, PCL, MCL, and Meniscus if an Airborne operation. After the surgery was complete, I was fitted for an older model of this brace. I used it for 12 years before it finally failed broke. Quite honestly, I nearly paniced. Despite the road blocks put in my path by the VA I finally got a new brace, the Defiance III. WOW! This is what comfort should be. After almost a year without a brace, it sure feels good to be back in action. Excellent product.
Posted on July 23, 2013