ShoulderSaver is designed to alleviate pain and discomfort in the shoulder area by providing support to the rotator cuff to improve stability. Made with 100% SILVERPRENE material and an extra-strength latching strap to ensure a comfortable breathable fit that will not loosen during use. ShoulderSaver is great for strains sprains tendinitis arthritis subluxations and other common shoulder rotator cuff arm clavicle ligament tendon and muscle problems.