SERIOUS HELP FOR PAINFUL, ACHING SHOULDERS The Incrediwear® Shoulder Brace is designed to help ease pain and stiffness associated with arthritis, rotator cuff injuries, tendonitis and more. Made of a therapeutic fabric that dramatically increases blood flow to help reduce pain and swelling, and accelerate recovery. Slim, flexible design lets you go about your daily activities. Fits either shoulder. Machine washable nylon/polyester/spandex infused with Germanium and Carbonized Charcoal. Measure circumference of bicep.