Sizes Available: XS-XL Color(s): Black (5mm) & Grey (7mm) Sold in: Single Sleeves or Pairs Sleeves Functionality Bear Grips compression knee sleeves are contoured knee support gives the knee joint support and stability. Provides the optimal environment for knee ligaments, tendons and surrounding muscles by keeping areas warm and supported. Relieves stress off ligaments, tendons and surrounding muscles by keeping areas warm and supported. Relieves stress off joints, while promoting faster muscle recovery and reduction of injury. Bear Grips Knee Supports stay in place throughout your workout, without any sliding or readjusting. Perfect for all training levels. Optimal for Gym, bodybuilding, Olympic lifting, power lifting, and Cross Fitness (updated May 1, 2016) Knee Sleeve Sizing Chart : Measure ~4" (10cm) below Middle of Knee Cap Extra-Small : 12.6 - 13.4 inch (32 - 34cm) Small : 13.4 - 14.2 inch (34 - 36cm) Medium: 14.2 - 15.0 inch (36 - 38cm) Large: 15.0 - 15.7 inch (38 - 40cm) Extra-Large: 15.7 - 16.5 inch (40- 42+cm) If Between Two SIzes, For a snug fit choose the smaller size. Knee Sleeves with break in and contour in 2 - 3 uses. Cleaning Instructions: Never use washing machine. Clean each stain with warm water or add some shampo. For little hard spots use soft bristled brush. If it is all dirty then rinse it or soak it in warm water with shampoo for 15 to 30 minutes. Never store folded. For Best Results combine your Bear Grips Knee Sleeves with Bear Grips Shin Sleeves