Ergodyne® ProFlex® 420 Wrist Wrap Relieve the stress and strain associated with repetitive movements and overuse injuries by providing essential support with the Ergodyne® ProFlex® 420 Wrist Wrap. Durable woven elastic ensures long-lasting comfort, and hook and loop closure adjusts support for a comfortable, exact fit and desired tension. Ambidextrous black support features a thumb loop that secures around the thumb and wrist, providing extra support and improved comfort. Washable.