I was a big-time wrestler in high school, AAU for about 8 years and a retired firefighter. I am now 79 years old and have mostly knee injuries. Now I need surgery bone on bone both knees. The knees became an issue when I hit 68. I've had different braces; none have helped me enough to make mobility easy. UNTIL NEENCA!!! I received the first one 1 year ago and have not taken off. The only reason I bought new ones is because I have lost wight need a smaller size, I even sleep with them on! The sleeve has support built in, so it does not touch your skin. I have a full range of motion. It is a great all-around support for both knees.