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DonJoy Reaction Undersleeve

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DonJoy Reaction Knee Undersleeve

DonJoy Reaction Undersleeve Replacement

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  • Product Description
  • Size Chart
  • Product Reviews
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Replacement undersleeve for the DonJoy Reaction Knee Brace and DonJoy OA Reaction Web Knee Brace. Made with 85% Nylon and 15% Spandex.

Take the measurement of your thigh and calf 6" above and below your kneecap using a flexible type tape measure.  Use the circumference you measure here to choose your size.

Note: The DonJoy Reaction Sleeve runs small. If you measure between sizes we recommend going up one size for optimum comfort and fit

    Size Thigh
    XS/S 13.5" - 18 .5" (39-47 cm)
    M 18.5" - 21" (47-53 cm)
    L 21" - 23.5" (53-60 cm)
    XL 23.5" - 26.5" (60-67 cm)
    XXL 26.5" - 29.5" (67-75 cm)
    XXXL 29.5" - 32" (75-83 cm)
5 1

DonJoy Reaction Knee Undersleeve reviews

Before having knee surgery for a knee replacement my doctor ordered your brace and sleeve for me. The combination along with medication helped me greatly with the terrible pain I suffered. After the surgery I recently started using the sleeve alone because of pain and swelling. It has given me excellent results with pain and the swelling. I highly recommend your products. - Shirl

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Questions on DonJoy Reaction Knee Undersleeve

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  • From Markanthony Williams at 5/27/2015 2:39 PM
    • What other donjoy knee braces can I wear the DonJoy Reaction Knee Undersleeve with?
    • You can wear that under sleeve with any brace although it is only 13 inches in leangth
  • From Laura at 5/14/2015 4:44 PM
    • What options are there if you have a silicone allergy? So far we have had to wear the sleeve inside out. This works but obviously not as good as with the "stay put" dots of silicone.
    • Laura
      If the sleeve is causing irritation we should be able to sen our Lycra undersleeve to you instead. Just call BetterBraces if you purchased from there, or call customer care at 800-336-6569
  • From Joaquin at 3/24/2015 8:09 AM
    • I use a M/L brace. I need the L sleeve. How can I order this without the cost of an extra sleeve?
    • Joaquin
      If you ordered the brace from us just call 800-553-6019 and let them know that you need the larger sleeve. They should be able to send it at no cost to you.
  • From Peter Teichman at 1/12/2015 12:21 AM
    • I have a Bledsoe knee brace that slides down while using, will the reaction knee sleeve prevent this? I need more friction to prevent the sliding.
    • Peter
      If you want an undersleeve to prevent your Bledsoe brace from slipping I would suggest the neoprene undersleeve.
  • From Van at 8/16/2014 9:04 PM
    • My Dr. put me in the DONJOY Drytex™ Hinged Knee Brace about 2 weeks ago. Been doing well till it hit over 100 degrees recently. Now I have a bad heat rash. I also wear braces on both feet/legs and the heat rash is there also. What do you recommend to wear under the the foot/leg & knee brace to keep down the heat rash? I was looking at the DonJoy Reaction Knee Undersleeve and was wondering if this would help?
    • Van
      The sleeve for the Reaction might work under the other braces to keep the heat rash down
  • From john at 6/1/2014 1:36 PM
    • Where can I buy a reaction knee sleeve?
    • John
      Call Customer Care at 800-336-6569
  • From Jordan at 4/15/2014 7:28 PM
    • I was wondering what is the length of the Don Joy reaction under sleeve? I currently have one that is 15.5' and am looking for something close.
    • Un-stretched it is about 13 inches
  • From Roy at 1/20/2014 6:54 AM
    • Are you able to ship the Donjoy Reaction undersleeve to the UK? I already have the brace, which is excellent, but my sleeve is becoming threadbare.

      If you can send it, what shipping charge would I incur if I ordered two?

    • Hello,

      Unfortunately, we do not ship outside the U.S. Please contact your local representative for purchasing the replacement sleeve.

      Thanks for Contacting Donjoy.
  • From Kelile at 12/16/2013 12:01 PM
    • I was issued a DonJoy Knee Brace back in 2001 or 2002 to better support my right knee that was made stable with screws. I found that knee brace to be cumbersome. Will this knee brace work for my knee?

      Thank you
    • Kelile
      Thank you for contacting product support. The Reaction Knee Brace is for those who suffer from anterior knee pain caused by patellofemoral dysfunction, problems associated with the kneecap and mild arthritis. If you need medial and lateral support you need to stick with a hinged knee support.
  • From Roberta at 6/26/2013 11:43 AM

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