DonJoy PerformanceBionic Fullstop ACL Knee Brace – 4 Points of Leverage Hinged Knee Support for Ligament Protection, Injuries, Prevent Knee Hyperextension for Football, Soccer, Lacrosse, Contact Sports

This is the best knee brace I’ve ever had. Great support, good materials, and comfortable. ACL surgery a couple of years ago, works for basketball.

Purchased to support interior left knee pain that is likely related to sprained MCL or tendinitis. Used for skiing 10 out of 12 days and it worked great. Offered great support and prevention of internal rotation or flexing. Did not inhibit skiing at all and support gave added and necessary confidence to the endeavor.

The hinges dig into your knee joint. Very uncomfortable if you wear it to bed. The bars are tight down your legs

I really wanted this thing to be all it was cracked up to be.In shorts the Velcro straps cut my other leg, and the lower portion of the brace aggressively stabs into my calf when I’m walking.The brace is made of nice material and very heavy duty.The straps should all end on the left side (for left leg and right side for right) with the Velcro facing outwards, and the lower metal hinge should be heavily padded, not just shoved in a heavy duty sleeve.I really wanted this thing to be better than the McDavis but it’s not. It’s more comfortable if I’m laying down not doing anything, but that’s not why I bought it lol.

I have a fully torn pcl in my left knee, which I bought this brace for. I tore it about 8 years ago, it healed (sort of) and it tore again a couple months ago. I also have an older version of the same brace I would say I prefer. This one slides on like a sock, while the old one you could strap straight to your leg as if you already had shoes on. This new brace doesn't quite stay in place as well, nor is it quite as stable, so for the same price I paid 8 years ago it was a little disappointing. However, it does make my knee pain go from a 7 or 8 down to about a 2 or 3, so all in all, excellent brace :) I would highly recommend this to anyone with torn ligaments or otherwise destabilized knee

I’ve had this brace almost 10 years and has kept me very stable after 4 knee surgeries. The padding is finally starting to fall apart but I’ve used this thing for everything from sports to carrying patients as a nurse. I’ve been recommending this brace for years especially if you free from instability or buckling, and am about to purchase my second one!

The brace is one of the best for a serious ACL injury but dang, could they please fix the sizing chart? My wife injured her ACL and we carefully measure her leg 6" above, at, and below the knee as requested and she fell at the bottom end of the size range for a Medium but it would not fit. I did notice other people complaining that the sizes run small but to be at the bottom end of the size range and it still not fit needs to be addressed. We replaced the medium with a large and it fit but still tighter than expected. My son had this same brace about eight years ago and it had several different angle adjustment stop plates that allowed you to customize how straight (even slightly hyperextended) the brace would mechanically be allowed to go so I was disappointed to see they don't have that option anymore. Still, if you want maximum stability for serious knee injuries, this is the one to get.

I couldn't find anything specifically stating it helps a backwards hyperextended knee so I got this without knowing it helps. Turns out it does. The package was torn but it was intact. I sterilized it before using it. It arrived before the estimated date. I dont know how long it will last but so far it's working.