Im 5'11" 185lb and the large fit great! I feel that I have more knee stability. I think they will work better over time once I get used to them because they do make leg presses feel a little different. I had a PR first time I used them. Also, I can wear them the whole time I'm in the gym because they are tight enough to stabilize but not so tight it cuts off circulation. If you want supreme tightness and stability then you will need to get the knee wraps, but those add time to your work out because you have to keep taking them on and off. The only thing that could be better is if the sizing guide was on this site instead of having to go to the schiek website to figure out my size. With that said, Jay's prices are lower than the schiek website.