The Actimove ECO Shoulder Immobilizer holds the arm in a neutral position and limits movement to stop the humerus from rotating. It's a great support to wear following surgery or injury. The Actimove ECO shoulder immobilizer features a foam neck strap, a large, roomy envelope, and a thumb loop. The shoulder immobilizer has hook and loop fasteners for a quick and simple application process. Sizes: Small, Medium, Large, and X-Large.