It didn't fit and wasn't adjustable enough to make it fit. To get one to fit on my thigh it's too loose on the knee and calf, but to fit the knee and calf doesn't fit the thigh. I really can't tell you if it works or not because it doesn't fit me properly. I'm getting a better result with that Tensor tube sock thing.

The spandex-like lining is really thin and offers no stability support. The only support really comes from the metal brace skeletal structure. McDavid's similar braces provide better support because the support comes from both the metal bracing and the spandex-like material. With this Mueller knee brace, the spandex material does not hold the knee stable enough, it is tight but all it feels like is a tight women's stocking with metal braces...only good if you are looking for minimal support...i wish i stuck with McDavid.

I can't recommend this product because it doesn't stay in place, slides down out of position. I originally ordered a medium since my knee measurement just barely fell into the medium sizing. I really liked the fabric and comfort, but it wouldn't stay put. Therefore, I ordered the small. Tighter fit but it still slides down somewhat. Too bad. The fabric on this product is much better than neoprene as it's much cooler, breaths, and doesn't bind up in the back of the knee as much.

If you are looking for support for an unstable knee, this one is not for you. No compression to aid stability, just the hinged joint. Might be helpful for some, but it wasn't for me.