Fits left or right wrist. X-stay. Comfort system. Antimicrobial (Antimicrobial treatment is intended to protect the brace and does not extend protection to the skin). Exclusive patent pending X-Stay for superior comfort and support. Rigid metal support under wrist to help reduce motion. Aids in the treatment of carpal tunnel syndrome and arthritis. All-day support for weak or injured wrists. Not made with natural rubber latex. Maximum support level. See details on our website. Fits left or right wrist. Size LG/XL fist left or right wrist.