This is the wrist sleeve that improves circulation to help relieve the pain caused by carpal tunnel and arthritis. The sleeve has six zones of graduated compression that facilitate blood flow throughout the wrist and forearm, reducing swelling and improving the mobility of joints to alleviate carpal tunnel and arthritic pain. The sleeve leaves your fingertips exposed and is made from a flexible material, allowing you to grasp objects or dial a phone while maintaining tactility. The sleeve wicks away moisture and allows the wrist and arm to breathe for comfort during extended wear. Size is determined by wrist circumference: S (5"-6"), M (6 1/4"-7"), L (7 1/2"-8 1/4"), XL (8 1/2"-9 1/4").