01A 01A 284.99

SP Walking Brace


Availability: In stock

Attention Medicare Patients

Ideal for those where limb length or calf circumference prohibits them from using a standard height walker

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Product Details

Product Description

Is the SP Walking Brace right for me?

Ideal for those with forefoot or midfoot injury, acute pain, foot fracture or post-surgery. Try our Brace Advisor for personalized product recommendations to meet your needs!

The SP Walker provides semi-pneumatic support with Aircast semi rigid shell protection and is available in 5 sizes (pediatric, small, medium, large and x-large). Foam-filled aircells cushion the ankle for customized comfort and support. This support is effective in fracture healing, managing edema, and post-op protection.


  • Metatarsal fracture
  • Forefoot, midfoot, or hindfoot injury
  • Acute or post-operative use
  • Bunionectomy
  • Soft tissue injury


  • A semi-rigid shell to provide the protection formerly expected only from a cast
  • A rocker sole to reduce plantar pressures
  • Pneumatic compression for improved blood flow and edema reduction
  • Custom-inflated aircells for individual fit and support
  • Low profile for a natural gait

Key Benefits:

  • Fracture healing
  • Managing edema
  • Post-op protection


Do not over-inflate aircells. Improper aircell inflation may cause significant skin irritation in patients with diabetic neuropathy. Reduce aircell compression with any visual skin changes or reported discomfort. Do not use this device on patients incapable of communicating physical discomfort. Like all lower extremity immobilizers, such as casts or braces, patients without sensation (i.e. post-op anesthesia, neuropathies, etc.) should be monitored frequently for "hot spots," skin irritation or wound management. Use caution when walking on slippery or wet surfaces to avoid injury.

Shop our complete selection of walking braces or browse additional Aircast products.

Size Chart & Fit Help
Size Men Shoe Size Women Shoe Size
Pediatric Up to 4 Up to 5
Small 4-7 5-8
Medium 7-10 8-11
Large 10-13 11-15
XLarge 13+ 15+
Product Questions (69)

Product Questions

Aircast SP Walking Brace

Product Questions

Sort by Ascending
  • Helena at 8/22/2016 8:31 AM
    • Is the foam washer liner washable? Mine needs to be cleaned but I can't find information on caring. If so, cold or hot water? Air-dry or dryer?
    • Yes you can wash the liner. Make sure you hand wash in lukewarm water, mild soap and air dry.
  • Jeanie Miller at 7/16/2016 11:20 AM
  • Amanda at 5/11/2016 9:09 AM
    • I have an avulsion fracture of the 1st phalanx. I wear a true size 8 women's shoe. Both the small and medium have an 8 size range. Would it be better to go smaller or bigger? Thank you!
    • I suggest going the medium to make sure your toes are going to be completely on the boot and not any where close to the edge
  • Cheryl at 4/13/2016 5:53 AM
    • I have a pinky toe fracture and was wondering if the sp short walking brace be suitable for me? I basically need it to stabilize my foot. I would love to get rid of my crutches and use the boot to walk.
    • The SP Walking Boot can be worn with this diagnosis, however speak to your medical professional before using the boot
  • Donna at 4/4/2016 10:35 PM
    • In am petite, 5' 96 lbs, however, I wear a size 8 or 7 1/2 shoe. I have a stress fracture in my foot. The doctor gave me a "boot" to wear. It is very uncomfortable and heavy. What size should I order for the Air Cast SP Walking brace? Thank you for your assistance.
    • Small would be the correct size
  • Randy West at 3/16/2016 11:20 AM
    • What is the weight of this product?
    • Small 1.93lbs
      Medium 2.35lbs
      Large 2.85lbs
  • Shannon at 3/5/2016 7:51 AM
    • Does it matter if it is left or right foot?
    • no the boots are universal and can be worn on either foot
  • Wilson at 3/3/2016 1:11 PM
    • How much EXACTLY does the medium size weigh? I am currently using a Maxtrax that weighs 2.5 lbs. it is heavy to walk in.
    • 2.35lbs
  • Glenda at 3/2/2016 7:21 PM
    • My doctor placed me in an Aircast walking brace for soft tissue injury, arthritis, swelling, and inflammation of the foot. Prior to my injury I had been walking 3-4 times a week for an hour but stopped due to injury. Can I return to walking with the boot for the next 6 weeks? What is your recommendation?
    • You can certainly walk in the boot but I am not sure walking for that long of a period in it will be very good for the healing process. I would suggest doing a non-weight bearing exercise during this time
  • don west at 3/2/2016 1:55 PM
    • I have a bone spur on the back of my heel. is the S P walker the correct boot
      to use. Its an old boot I have and the doctor told me to wear it for three wks.
      but the pain is the same as no boot at all.
    • You can try adding a hell cup to the boot for some cushoin over the heel. https://www.betterbraces.com/procare-silicone-heel-cups
  • Sarah at 12/18/2015 11:36 AM
    • Hi I have a medium Aircast walking brace. I am trying to find a shoe that matches the rise of this boot so I don't have so much imbalance when I walk. Can you tell me the rise and the drop of this boot?
    • The depth of the heel from inside to the sole of the boot is 1.7" We also have the evenup shoe balancer to use instead of buying thicker shoes. https://www.betterbraces.com/procare-evenup-shoe-balancer
  • Aimee at 12/16/2015 9:02 AM
    • Answer urgently needed! My daughter (16) is wearing an Aircast SP (low model) for sesamoiditis and her doctor has recommended padding it beneath her heel and around her ankle and low calf area, because wearing the cast is causing her additional pain. She wears a 6 1/2 shoe and was given the size small--she is a ballet dancer and has very narrow heels, tiny ankles and small calves. Would the pediatric boot be better, and/or what materials do you recommend for padding beneath the heel? They recommended rolled-up washcloths on the sides of her leg.

      If she tightens the boot around her ankle or adds more air, this causes numbness.
    • She is wearing the correct size boot. To pad the heel you can purchase a Dr. Scholls gel heel pad from your pharmacy. Try only pumping a slight amount of air into the boot for the sides, other wise you can use a sock to pad those areas
  • Nael at 11/29/2015 12:49 PM
    • Hey ,in case of buy the item and want to return it is it ok with that or what??
    • There is a 60 day return policy
      Our no-risk, unconditional 60-Day Money Back Guarantee allows you ample time to see if your investment in your health is doing the job you expect and deserve. If, after trying the product within this time frame, you are not completely satisfied, you may exchange the item or return the product for a refund of the purchase price (minus shipping & handling). Please note:

      We do not charge restocking fees
      It is the customer's responsibility to pay for return shipping
      You have 60 days from the date of delivery to return an item
      The DonJoy Defiance Custom Knee Brace does not qualify for the 60 Day Money Back Guarantee because it is custom made
      Multiple RA numbers will be required for items returning that were placed on multiple orders; however, they can be shipped back to us in 1 box listing the multiple RA numbers on the outside of the box
  • Kristie at 11/16/2015 12:49 PM
    • How much does the Aircast SP walking brace size Medium weigh?
    • Kristie
      Aprox. 2bls
  • Dee at 11/13/2015 6:37 AM
    • Do these walking boots have a slip-resistant sole?
    • yes
  • Parris at 11/3/2015 8:45 AM
    • What is the difference between the FP and the SP air cast?

      I am very mobile at work, I'm looking for a cast that is curved at the bottom for easy walking, but also takes maximum pressure off the front of my foot.
    • The SP is short pneumatic and FP is Foam Pneumatic. The FP is a taller boot and is for ankle and lower leg injuries. The SP walker is shorter and for foot injuries. They both have a rocker bottom
  • Arthur at 8/21/2015 5:37 AM
    • I've had a drop foot (lower leg paralysis, severed sciatic nerve, hit-and-run driver) for 40 years and the ankle joint is very unstable. Any lateral movement or pronation or supination is painful. I've run the gamut of AFO's and nothing really works. I'm very athletic, including competitive rowing, and wish to keep at it. Rowing requires driving off your feet. Would the SP be suitable? Also how do I submit my MD's scrip for Medicare? Can't get through on your '800' number.
    • Arthur
      You will not be able to do anything active in the SP Walker. This is for immobilization of the foot and ankle. I would suggest the Velocity Ankle Brace either moderate support of extra support. The brace has a hinge which should help prevent laterl movment while being in a shoe. https://www.betterbraces.com/donjoy-velocity-ankle-brace
  • Garry at 8/15/2015 10:48 PM
    • I ruptured my achilles tendon and have had surgery. I'm in the second phase of a cast with my next phase being a walking boot. Could you recommend a walking boot that I would need? I want to show my doctor and see if they will allow me to use. I'm a size 9 shoe and wonder what size I would need. My leg has atrophied some since my surgery. Thank you.
    • Garry
      The MaxTrax Air Walking Boot wold work gret for you and it comes either with or without a hinge. The hinge is used to restrict ankle movement if you doctor wants to do that once you come out of cast. https://www.betterbraces.com/donjoy-maxtrax-rom-air-walker
  • Vandy at 7/31/2015 1:03 PM
    • I was considering this support but was concerned about calf size. Shoe size I am looking at needing a Medium but was concerned as I have a large diameter calf. 17"
    • The pnuematic air cells allow for a customized fit and can accommodate a larger calf size.
  • Nick at 6/18/2015 3:57 AM
    • Does this cast work for Charcot foot?
    • Hello,
      Thank you for your question you can use the Aircast SP Walking Boot for Charcot foot.
  • Kate at 5/1/2015 3:00 PM
    • I sprained and tore ligaments in my big toe. I cant put weight on it and its been about 2 weeks since the injury. Ive been walking on the side of my foot. My question is, would it help me if i got this?
    • Kate
      Yes the AirCast SP Walking Boot will help you to get around with less pain because it immobilizes the foot so it doesn not bend with walking and this will decrease pain
  • Megan at 11/17/2014 2:17 PM
    • How is the traction on the soles of these walking casts? Good enough to be safe when walking on snow/ice?
    • Megan
      The Aircast boots do have a sole that should be stable in most environments. I can tell you that the Aircast Air Select Short has a sole that is more designed similar to tennis shoe sole and may be more non-slip that the SP Walker. https://www.betterbraces.com/aircast-airselect-short-walking-boot
  • Laura at 8/18/2014 6:07 PM
    • Doctor told me I have a bruised bone on my outer ankle. He recommended the Aircast boot. When I apply the pressure with the air it hurts bad and I can't lift the boot. Am I doing something wrong? Should I put more air in until it doesn't hurt? Thanks in advance.
    • Laura
      If the pressure of the air bladder causes pain, do not inflate the side that hurts, or do not inflate as much air. The air is for comfort, swelling and overall fit of the boot but it doesn't have to be used
  • Donna Sterling at 6/24/2014 6:26 PM
    • Is this boot suitable for being in an MRI environment with their heavy magnetic field?
    • Donna
      The boot should not be worn in a MRI but if you work in the area it should be fine to wear
  • billy at 5/7/2014 4:43 PM
    • is it good for badly sprained ankles?
    • Billy
      For badly sprained ankles the Aircast FP Walker would be best. It will immobilize your ankle and allow you to walk without as much pain.
  • cloe at 5/6/2014 6:17 PM
    • I wear a womans 6 what size should I get?
      How high does it go?
      Will it help with bruising
    • Small
      the middle of your calf
  • Jean at 3/20/2014 7:49 AM
    • I feel and sprained my foot and ankle..my ligaments and tendons have been strained ..I was wondering if this boot would be helpful ?
    • Jean
      If you sprained your ankle as well as your foot the Aircast FP Walker would be the best choice for you.https://www.betterbraces.com/aircast-fp-walking-brace For ankle injuries the immobilization needs to extend beyond the lower calf.
  • K at 3/16/2014 7:53 AM
    • My son is a 11 and a size 5.5 shoe. What size do I get for his walking cast? Also, I need quickly. If I order on Monday can I receive by Weds? Finally, he needs one for each foot. Are there left and right foot air casts or are they one and the same?
    • I would say the small. The length from heel to toe for the small is 10.4 " a youth 5.5 length is 9 1/8". Right now if you order expeditied shipping you may get it thursday
  • Cyndy at 12/7/2013 7:45 PM
    • I just started 2 days ago to wear the brace and I am so sore on either side of my calf. I have tried adjusting the air, wearing a higher sock but to no avail I am rubbed raw. Good thing is my foot feels better when I wear it. 5th metatarsal stress fracture. I stand 10 hours a day so maybe this "walking" cast is not for prolong hours. Please help.
    • Cyndy
      Thank you for contacting product support. If the boot is fitting correctly there should not be any excess movment in the top of the boot. Try inflating more air to remove movement of the heel and tightening the straps so the leg doesn't move against the side of the boot. If this doesn't work please contact product support at 888-405-3251
  • Randa at 10/2/2013 9:19 AM
    • I have been diagnosed with an ankle stress fracture and prescribed the aircasst boot. Dr also recommended the use of Fragmin, to avoid deep vein thrombosis. I am 55 . Is this normal?
      I have no history of thrombosis at all.
    • Randa
      I unfortunatly can only answer any questions related to you aircast SP walking boot which is indicated for your ankle and foot injuries. If you need something with alittle more support we also have the Aircast FP walking boot which is a little taller. If you have any questions about medication that you have been prescribed you should talk to your physician. If you have anymore product related questions please don't hesitate to contact me. thank you for contacting Product Support.

      Diana Keith MA, ATC
      Product Support Specialist
      DJO Healthcare Services
      DJO, LLC
      A DJO Global Company
      1430 Decision St, Vista, CA 92081-8553

      O (760)734-3144

      Responsibility Restorative Discipline Consistency Competition

      Confidentiality Notice: This message, together with any attachments, is intended only for the use of the individual or entity to which it is addressed and may contain confidential or privileged information. If you think you have received this message in error, please advise the sender and then delete this message and any attachments immediately.

  • Gail at 9/25/2013 8:16 PM
    • I used to wear a size 6,8 then a 7. Now I wear an 8. Should I buy a small or medium?
    • I would order a Medium if you are a solid 8. if you are a smaller 8 and sometimes 7.5 i would go small.
  • MacKenzie at 6/24/2013 5:26 PM
    • Hi. I have severe heel pain and I have tried everything from different foot beds to heel cups to braces, would the air cast SP walking brace help me? I am on a big vacation that involves a lot of walking! Please let me know ASAP!
    • Hello Mackenzie

      Yes, the Aircast Walking Boot will take the pressure off of your foot. They are recommended for stable fractures, ankle/foot sprains.

      See the link below.


      Thanks for contacting Donjoy.
  • Jace at 5/12/2013 5:50 PM
    • Will the air cast help a broken foot?
    • Hello, Jace -

      I believe this question was asked and answered already. The Aircast Walkers are worn post injury and is designed to immobilize the foot during healing. I'm a little unclear what you mean by "help a broken foot".

      If you have further questions, please feel to contact our product specialists at 888-405-3251.

      Thank you and have a wonderful day!
  • Jace at 5/11/2013 10:25 AM
    • Will this foot brace help for a broken foot
    • Hello, Jace -

      When someone suffers from a broken foot, this walker is indeed one that is recommended. I'm a little unclear what you mean about it "helping", but people do wear this brace post-injury to keep the foot immobilized during their healing phase.

      If you have further questions, please feel free to contact our product specialists at 888-405-3251.

      Thank you and have a wonderful day!
  • Abigail at 3/19/2013 6:09 AM
    • I have a really big calf muscle/leg would this boot fit and be comfortable?
    • That depends on the size of your calf. If you go to our website and type in your zip code, you can find the information to the Aircast Rep in your area, they will have samples and can help fit you with the correct size walking boot, they can show you how it can be widened as well. Here is that link to the rep locator: http://www.djoglobal.com/contact-us/sales-rep-locator
  • Ruth at 8/2/2012 8:16 AM
    • I have been given an aircast for a fractured toe. (from the podiatrist) Can you please tell me the height of the heel. I have hip and neck issues and need to find a shoe / sneaker that will be easy to walk in with the boot.

      I currently had on Asic running sneakers and these were too low according to the doctor.
      Looking for some safe options.

    • You could buy a ProCare Even Up shoe balancer to wear on the opposite foot's shoe. Here is the link to that product : https://www.betterbraces.com/procare-evenup-shoe-balancer
  • Padraic McNamara at 7/16/2012 10:14 AM
    • My Son has to use the Air Boot for awhile. I know it can get wet, but is it submersible?
    • It is submersible, it just needs to be rinsed with tap water and air dryed after you get out of the water
  • Becky at 4/17/2012 10:28 AM
    • This may be a dumb question; my doctor just put me in this boot yesterday; I have a lisfranc injury. When I wear slacks, should I tuck the pant leg into the boot or let it sit on top of the boot?

    • Tuck them inside the boot unless you can fit them normally over the boot.
  • Alli at 4/4/2012 11:55 AM
    • Hi,

      I wear a women's shoe size 11 and my feet are narrow to medium. What size should I get in the brace?
    • Medium
  • Nicole at 2/6/2012 7:24 PM
    • I had to start wearing the Aircast SP walking brace today because of an injury on my left foot. I’m wondering what I’m supposed to do when it rains or snows. Can I still wear the boot outside in that type of weather? If so, how do I protect my foot from getting wet because I can only wear a sock while wearing the aircast?

    • We do make a weather cover for rain and snow. It can be used with any of our boots.

  • Elizabeth at 12/14/2011 4:48 PM
    • What is the weight of the Aircast SP Walking Brace?
    • 1.75 lb.
  • d. trujillo at 12/4/2011 1:02 PM
    • is it better to wear a sock with the cast or not?
    • Hi ,

      We suggest wearing a sock while using the Aircast SP Walker Brace.

      Have a nice day.
  • Marcie at 11/17/2011 5:55 AM
    • Where can I find replacement liners for the SP Walking Brace? Mine has started falling apart after only 3 weeks.
    • Call 800-553-6019
  • Brandy T at 10/7/2011 4:59 PM
    • I was recently diagnosed with Plantar facitis which I have had for almost 2 years but did not have checked until last week. It was recommended I wear a walking boot ( aircast) for 6 weeks. Does this cast work for PF?
    • depending on how sever a doctor will try to immoblize the foot, the Aircast SP walker is a great option for this.
  • Promod at 8/16/2011 2:44 PM
    • I will be asked to wear boots after my Achilles surgery for bone spurs removal. Are there any distinct advantages of using AirCast SP over FP model?
    • The SP walker is for foot fractures and injuries the FP walker is better for ankle and lower leg injuries so I'd reccomend that for you.
  • Brett at 7/6/2011 12:00 PM
    • Does this walker come with the AirCast sock liner, as indicated on the accessories page?
    • No those do not come with a sock. Only the XP and FP walkers come with socks.
  • David at 6/24/2011 11:26 AM
    • The air cushion does not stay inflated. Are there replacement air cushions for the ankle?
    • Yes the aircells are replaceable. Please call to place your order. 800-553-6019.
  • Chris at 6/17/2011 10:26 AM
  • Alix at 5/28/2011 4:37 PM
    • What are the care instructions for this boot? is the liner machine wash and dry?
    • Hi Alix,
      The SP Walker Liner is Hand wash, Lite detergent, and air dry.

  • maria at 5/28/2011 4:33 PM
    • Is the liner machine washable?
    • Hey Maria,
      Yes, the inner liner is washable. You want to wash the liner by hand and air dry. Please pay close attention as you take the liner out so that you will know how to put the liner back in. Many times people forget how it went in the boot and cannot put it back in.

  • Ginny Brewton at 4/8/2011 11:20 AM
    • My orthopedic Dr. put me in the Aircast SP walker for a broken ankle. Do I need to wear it in bed too? It's not comfortable for sleeping!
    • Hey Ginny,
      Unfortunately I can not answer that question for you. That has to be your doctor who makes that decision. I can tell you that most doctors do want their patients with broken ankles to wear the walker at all times. If your doctor does tell you that you have to wear it in bed, I recommend sleeping on your back and propping pillows on the side of the boot so that it is supported. I hopet his helps.

  • Julie at 4/1/2011 1:17 PM
    • Can these be worn on either foot or are they L/R specific?
    • Hey Julie,
      The Aircast SP Walking Brace is not L/R specific. It can be used on either foot.

  • lindabrimley if you have no insurance do medicaid pay for this if you need it but can''t afored this brace. at 3/24/2011 4:14 AM
    • I would like to know if you have nothing but mdicaid would they pay for you to get this brace when you just don't have the money to purchs one.
    • You would need to contact medicad directly to get the answer to that question.
  • Sudiono at 3/17/2011 3:18 AM
    • Does The Aircast SP Walking Brace work for the metatarsal fracture?my 2nd,3rd,4th metatarsal broke after surgery Dr said that i can't walk until 4 month.it was too tempting....
    • The Aircast SP walking brace is for Metatarsal fractures. The brace is short, cause it is specifically for foot injuries. With the aircell design, it helps taking of some of the pressure and weight on the injured areas to allow them to heal, while still trying to be somewhat functional in your day to day activities.
  • Bob at 3/12/2011 5:41 PM
    • Can this brace be used for a stress fractured calcaneus (heel)?
    • Bob,
      Yes the AirCast SP Walker can be used for Calcaneus Stress Fractures.
  • Jeremy at 3/8/2011 7:46 PM
    • Can you do lower body weight training in these braces?
    • Jeremy,
      Thank you for taking the time to email us here at www.betterbraces.com regarding our AirCast SP Walking Brace and doing weight training in it. First of all, this is a question for your doctor, therapist, or athletic trainer who's overseeing your rehabilitation protocol. Functionally, the boot would hold up but you should ask your clinician if you are supposed to be doing specific weight training or rehabilitation exercises with the injury or diagnosis you have. If you have any additional questions please do not hesistate to contact us again.
  • Vicky Parmenter at 2/17/2011 10:55 AM
  • Connie McIntyre at 2/14/2011 7:18 PM
  • Anna at 1/27/2011 12:39 PM
    • Does this keep your toes from moving?
    • Hello Anna,

      The SP walker is designed to immobilize the foot and ankle, including your toes.
  • Sandra at 12/15/2010 8:06 AM
    • Hello' , I believe I have peroneal tendon subluxation. I do not have health ins, but I need something to stabilze my foot and ankl. What would you recommend for me to use. I think I need something to Completely immobilize my foot. Please get back to me as soon as possible. Thank you, Sandra
    • Hello Sandra,

      A walking boot like the Aircast SP walker is designed to completely immobilize the foot and ankle area. Be sure to inflate the aircells to reduce gapping.
  • vannesa at 10/25/2010 9:20 AM
    • Will this walking brace help a sprained ankle?
    • Hello Vanessa,

      Treatment of a sprained ankle is typically immobilization of the ankle to give it time to heal.

      The Aircast SP Walking Brace will provide that immobilization to the entire foot and ankle area.
  • Mark Bahls at 10/23/2010 8:07 AM
    • Do you have any braces that work for foot drop due to stroke?
    • Hello Mark,

      The Aircast SP Walking Brace will address the foot drop by keeping the foot at a 90 degree angle from the leg.
  • nestor at 10/12/2010 2:00 PM
    • how long should i wear the boot for a stress fracture on my right metatarsol
    • Hello Nestor,

      Your doctor will advise how long to wear the walking brace depending on your injury level.
  • phil at 10/8/2010 10:29 AM
    • can I drive with a walking fp air brace?
    • We do not recommend driving with the boot on. This is extremely hazardous and can cause an accident.
  • Jeana Lane at 9/17/2010 12:08 PM
  • faith at 5/9/2010 11:36 AM
  • Ji Xiang at 5/3/2010 7:40 PM
    • Does the Aircast SP Walking Brace COME with the air pump or what do you use to get the air in?
    • Yes. The brace comes with the Inflation Hand Bulb.
  • Susan Dean at 4/6/2010 5:54 PM
    • Does this work for a Avulsion fibula brake of ankle
    • We recommend wearing either the Aircast FP or XP Walker for this type injury. The Aircast SP Walker is ideally suited for foot fractures/injuries. The XP or FP Walker's will provide more support and stability for you.

  • Norm Joseph at 3/31/2010 8:59 AM
    • Does the same SP Walker fit both left and right foot?
    • Yes, The Aircast SP Walker fits either foot.
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