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 skin Velstretch strap: properly secures base of product while allowing ulnar and radial deviation Fits left or right: reduces inventory needs US manufacturing: higher quality control standards Sizing To determine proper size, measure the distance from last joint of the thumb (closest to finger nail) to the wrist. Size Fits 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"
