Med Spec TeePee™ Thumb Protector - Excellent choice for thumb sprains and CMC arthritis. Features: Triple stays: encompasses the thumb to provide a secure environment following injury. Malleable stays: main, dorsal and palmar stays can all be adjusted to customize for each patient. Perforated suede: improves evaporative ability. Polypropylene felt: wicks moisture away from the skin. Velstretch strap: properly secures the base of the product while allowing an ulnar and radial deviation. US manufacturing: higher quality control standards. Quantity: 1 Size: X-Small, Small, Medium, Large, or X-Large Color: Black Material: Perforated suede & polypropylene felt Manufacturer: Med Spec Brand: TeePee™ Indications: Ideal for those suffering from thumb sprains and CMC arthritis Options: X-Small (223081) UPC: 208357230815 Small (223082) UPC: 208357230822 Medium (223084) UPC: 208357230846 Large (223085) UPC: 208357230853 X-Large (223086) UPC: 208357230860 Sizing Guide: Distance from wrist to thumb IP (middle) joint. X-Small Fits: under 3 1/2" Small Fits: 3 1/2" - 4 1/8" Medium Fits: 4 1/8" - 4 5/8" Large Fits: 4 5/8" - 5 1/8" X-Large Fits: over 5 1/8"