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McDavid MD429 Knee Brace w/Polycentric Hinges, Adult XXL, BLACK

79 ratings
McDavid MD429 Knee Brace w/Polycentric Hinges, Adult XXL, BLACKMcDavid MD429 Knee Brace w Polycentric Hinges Adult XXL BLACKMcDavid MD429 Maximum Support Polycentric Hinges Knee Brace Black Adult LMcDavid MD429 Maximum Support Knee Brace Polycentric Hinges Black Adult MMcdavid 429 Knee Brace Maximum Knee Support Compression for Knee StabilityMcdavid 429 Knee Brace Maximum Knee Support Compression for Knee Stability
SizeAdult XXL

Key item features

  • Advanced Stability: Improves medial and lateral stability, aiding in injury reduction and recovery with Polycentric Hinges and Cross Straps for high-level knee and ligament support.
  • Breathable Comfort: Features an open 360-degree padded buttress for patella isolation and support, along with a perforated back panel for heat and moisture management.
  • Versatile Application: Suitable for various sports and activities including walking, running, hiking, soccer, biking, basketball, football, baseball, and volleyball.
  • Ambidextrous Fit: Designed to fit either the left or right knee, with reinforced pull tabs for easy application and removal.
  • Enhanced Performance: Incorporates technologies like cross compression and targeted compression to reduce lactic acid buildup and increase blood flow for faster muscle recovery.
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Current price is $50.00
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Customer ratings & reviews

4.4 out of 5 stars
stars
79 ratings56 reviews
How item rating is calculated
  1. 5 stars70% (55)
  2. 4 stars14% (11)
  3. 3 stars11% (9)
  4. 2 stars0% (0)
  5. 1 star5% (4)

Reviews summary

Pros

  • : Offers additional stability for lateral movements.
  • : Relieves pain in the knee joint.
  • : Provides a secure wear experience.

Neutral

  • : Can be snug, but may run small or inconsistent.
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Showing 1-3 of 56 reviews

Jul 24, 2026
Noor
Item details
Size: L
5 out of 5 stars review

Verified Purchase

Knee Brace

This knee brace has been a game changer for me. The polycentric hinges provide real stability without feeling stiff or restrictive—I can still move naturally while getting the support I need. It's well made and the material feels durable, not cheap. The fit is snug and secure, and once it's on it stays in place instead of sliding down like other braces I've tried. I've worn it for both workouts and everyday activity and it holds up great. If you're dealing with knee issues or just want extra support during activity, this one is definitely worth it.

Incentivized Review
Helpful?49X6UC6ZT3WL31378549
Jun 7, 2026
Andrew
Item details
Size: L
5 out of 5 stars review

Verified Purchase

Great value, durable

I've been using this for about 6 months. I bought it to prevent sideways movement of my knee. It works great at that. Originally a backup for my prescription brace, but now my go-to. The brace is a tube that slides over my knee and tightens with Velcro bands. In my situation it's a little tight- I was right on the margin of size M and L and opted for M, should've gotten L.

Incentivized Review
Helpful?49X6UC6ZT3WL31378549
Jan 1, 2026
SUZY
Item details
Size: Adult XXL
5 out of 5 stars review

Verified Purchase

Strong and durable brace for plus size woman

This brace is a life saver. I would have been afraid to trust my knee not to give out without it. I weigh 300 pounds and this brace helped me feel secure while strengthening my leg muscles, and made it possible to continue working. I sew for a living, and I am very impressed with the construction.

Incentivized Review
Helpful?49X6UC6ZT3WL31378549