The first soft elbow protection designed to ensure a perfect fit for everyone Features the innovative Boa system that controls the tension of the entire pad with a steel wire covered in nylon One adjustment can change the tension on the upper or lower portion of the guard Made with a outer layer polymer that is bonded to an inner layer of polyethylene foam and elastic nitrile rubber to create an extremely flexible and ergonomic guard that moves with the rider Pro Aluminum includes an aluminum elbow cap plate for added protection Pro designed as complete soft elbow protection