Copper Compression Shoulder Brace: Copper Compression products deliver the Maximum Copper Advantage. We infuse copper directly into the fibers, and then treat the finished fabric to ensure copper protection that can never wash away. This innovative approach brings you maximum hygienic benefits, enhanced protection and a superior experience. Copper Compression AC Rotator Cuff Support Slings are designed to help you get the support you need for all day and all night comfort. Commonly used by people suffering from sprains, strains, torn rotator cuff, frozen shoulder, dislocated AC joint, AC separation, bursitis, labrum tear, shoulder muscle soreness, tendonitits, stiff joints, and more!