The RX Knee Sleeve 3mm by Rehband is a light sports knee support that provides warmth, compression and a high degree of flexibility. It is ideal for longer workouts, endurance sports or when an athlete wants minimal support and a high degree of mobility. FEATURES Patented anatomical design 4-panel construction 3mm thick SBR/Neoprene Sold individually Fits right or left knee Available in a variety of colors BENEFITS Designed to move with you while providing support, warmth and compression Improves muscle coordination and control Fits great and stays in place while you workout Provides warmth and compression while still allowing freedom of movement Protects the knee and skin against abrasions Soft fabric like feel with exceptional durability Want more support? Check out the Rx Knee Sleeve 5mm, 7mm and Power Max. Want less support? Check out the Knitted Knee Support.