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I like the support these knee braces provide (I wear them every day for arthritic knees). The criss cross wrap around straps are a good idea, and help with support and keeping them in place. However, the top straps that attach in back of the leg are too short for probably most adults. The below the knee straps work fine. Most people's legs are wider in the thigh area above the knee than the leg below the knee. However, the two straps are the same length. This is a design flaw. Being too short means that not enough of the Velcro attaches to the other side, as a result, the top strap pops open all the time. I had no choice but to sew an extension of more velcro to the top straps so that they would fit, I also had to cover the exposed, scratchy side of the original velcro with pieces of ACE bandage, so it wouldn't rub on my bare skin all day and cause itching and rash. I happen to have the skills and the sewing equipment (a zig zag sewing machine) to remedy this problem, many people will not. So, manufacturers, please fix this, most people wearing these usually don't have legs like kids, or are extra skinny in the thighs.