Ideal orthopedic solution for aiding in soft tissue injuries to the thumb, arthritis, tendonitis, or De Quervain’s Syndrome Contoured splint to fit men and women Circumferential, elastic contact closure straps at the forearm, wrist, and thumb to secure splint position and maintain support Lightweight outer foam shell with a cool, cotton-terry liner is fully perforated to help ensure ventilation: It’s constructed of breathable nylon material. Durable, 9-inch splint contoured to provide effective thumb support Contoured splint to fit women and men with palm widths measuring between 2½ and 3½ inches at the metacarpophalangeal (MP) joints Excess strap material may be trimmed as needed. Hand washable .