Having an old knee injury, I can't workout without this brace. Its great for tennis and I even wear it skiing. it provides stabilization for my knee without any bulk. Its also great for cardio/kickboxing workouts! Lasts about 2 years
I use these knee braces for extra support and warmth when telemark and backcountry skiing. They lycra behind the knee is great for all day comfort. They can start to slide down and may need adjustment when using them all day.