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🦵 Elevate your knee game—support that moves with you, not against you!
The DonJoy Performance Bionic Knee Brace (Black, Medium) is engineered for adults needing robust support for MCL/LCL instabilities, knee hyperextension, and meniscus protection. Featuring bilateral polycentric hinges with hyperextension stops, precision TPR pull tab closures, breathable perforated neoprene, and anti-migration technology, it offers a secure, comfortable fit that stays in place during rigorous activity. Reflective accents enhance visibility, making it ideal for athletes and active professionals who demand reliable knee stability and comfort in any environment.





| ASIN | B00YBSL8MG |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #40,352 in Health & Household ( See Top 100 in Health & Household ) #173 in Knee Braces |
| Brand | DonJoy Performance |
| Brand Name | DonJoy Performance |
| Closure Type | Hook & Loop |
| Color | Black |
| Customer Reviews | 4.1 out of 5 stars 543 Reviews |
| Global Trade Identification Number | 00888912066402 |
| Included Components | Medical Brace |
| Item Dimensions | 14.5 x 5.8 x 2.7 inches |
| Item Weight | 0.45 kg |
| Manufacturer | DJO Global |
| Material | Neoprene |
| Model Number | DP151KB04-BLK-M |
| Number of Items | 1 |
| Part Number | DP151KB04-BLK-M |
| Size | Medium |
| Specific Uses For Product | MCL and LCL Instabilities, Knee Hyperextension, General Meniscus Support |
| Target Use Body Part | Legs |
| UPC | 888912066402 |
| Unit Count | 1 Count |
| Use for | Legs |
K**R
Absolutely Love It!
I absolutely love this knee brace! My right knee likes to dislocate and strain my mcl, this knee brace does a perfect job of keeping my patella in place and providing support for my knee. My knee is so bad now that it stays sore after extensive exercise aka riding and competing for me. When I wear this brace while riding there is no soreness after and this brace holds up fantastically to riding and weather! I’ve ridden in it in the summer heat, torrential down pours, freezing cold, etc. Never has this knee brace let me down and I’ve had it nearly a year! The metal side pieces are perfect for providing stability and support and I love this design for the Velcro. It stays out of the way of my saddle and stirrup leathers. I truly couldn’t have found a better knee brace, highly recommend!
C**2
Works great!
After many years of kicking grown trees down and wrestling Silverbacks in the Congo, ive perfected the fighting art Muay Thai Kickboxing. I wear this when i need extra support, because all the tree kicking. Sometimes my leg might flex and bust free out of this knee prison, but is put back on to serve the time. I highly recommend this product, as it works wonderfully. I will take with me when i go to pet polar bears in the artic to enhance reflexive skills used in certain combat styles. Until then, stay safe and hone skills!
W**R
Once it is on it works great.
A little more complicated to put on than others I have had, but it is worth it. Great support. Good for athletic use. NOt great to wear all day though. I would not use this all day due to the tightness of the band.
D**G
My knee is destroyed and I can walk
This bionic knee takes the pressure off and helps you walk. My right knee is shredded meniscus, ACL, PCL All gone. Can't afford surgery can barely walk downstairs. I've tried at least 10 different braces trying to avoid the three to $400 price tag for the god brace. This one I found and it actually helps. I can walk downstairs. It must be tight and it will stretch the more you use it. Measure your leg especially around the knees just as the instructions say before you order it and be sure it is tightly fitting. After a few days of use it will be very snug and it would be a little bit stiff to move but you'll be able to walk and that's what counts
B**E
Not as expected.
Bought this for the hyper flexion in my knee and it helps somewhat. Not as good as advertised. Also was very careful and measured like they said and bought the recommended size but it’s actually too small. I would recommend a size bigger than what the chart suggests.
D**.
Good comfort when active
I got this for my grandson that plays high school football. I got him several other types, but then tried this one, and he likes this the best. It's also the one his doctor recommended, since he got a dislocated kneecap during play. He's back in action, and uses this brace each time he plays (I got him 2, for both knees). It's more expensive, but worth it, especially if you are buying multiple types trying to find a good one, you'd end up spending this amount anyway.
T**L
Little support, can’t get it to fit correctly
I tried the small after roughly measuring my knee and it was way too small, so then I ordered the medium. The medium was too loose by the knee cap area, and the velcro/fold part pinched in the back and was really uncomfortable when bending and straightening my leg. It also restricted my range of motion for my knee. Overall uncomfortable and provided little support. In trying to pull brace tighter, it wouldn’t sit straight on my knee properly and there was just still way too much space for where my knee bends The delivery was also very annoying. For some reason USPS wouldn’t leave the package by the mail area of my apt, even though I’ve had other orders left for me there before, so I had to get it from the post office the next day instead of when I expected/needed it by.
L**N
Excellent product that does for me what it’s designed to do.
Excellent product, for what it is and purports to be. I have a torn medial meniscus, patellar malalignment and osteoarthritis in my left knee. Before I got this brace, climbing and descending stairs was very painful and my knee felt very unstable just when I walked on flat ground. After about three weeks of wearing this brace at all times except when I sleep and shower, I can now walk and climb and descend stairs pain-free, so long as I’m wearing the brace. In fact, I’ve done a couple of 10-mile moderately difficult hikes wearing it, with no pain. And I can now ride a bike. It’s not a $500 Unloader Brace, so I don’t know that continuing to wear it is going to enable any of my conditions to heal. But it does provide some vertical support, and regular use of it for 3 weeks enabled me to return to my usual low impact activities. While I’m wearing it I no longer have pain or instability. I’m 67 and don’t do high impact activities anymore, so I don’t know whether it would enable me to do them. Sizing: Based on the size guide on Amazon, I bought a Medium. On my bare leg it fits perfectly, and comfortably. But it’s too small to enable me to put it on over jeans or any but the thinnest pants. So you may want to order up a size.
L**T
Brilliant
30 years of using a metal brace, tried this to see if it would be as good and stop some of the muscle discomfort. Makes you feel like Steve Austin!
S**E
Worthwhile investment
Great fit - snug without being constrictive. Provides good support, handles perspiration well (doesn’t get loose). A tad expensive but I’d say it’s money well spent.
Trustpilot
1 month ago
3 days ago