This Knee support is ideal for Riding, mountain climbing, football, basketball, badminton, tennis, track and field and many other sports Provides compression for weak or over stressed knees High quality rubber insulation sleeve with double-sided nylon texture to provide the best treatment Fully adjustable Velcro makes it close tighter and gives better compression for the Knee Hook and loop closure design will fit most knee sizes Retains body heat to warm the knee joint and increase blood circulation Made from 75% Stretch Nylon 25% Rubber Foam Size Fits 31.8-40.6cms (Knee Circumference when knee is fully extended)| Made from 75% Stretch Nylon 25% Rubber Foam Size Fits 31.8-40.6cms (Knee Circumference when knee is fully extended