Duo-tension elastic for varied tension around palm and wrist area. Pre-shaped removable 1 inch stay. Hook/loop closure. Sizing: Measure Palm Width: SM: 2-1/2 in. - 3 in.; MD: 3 in. - 3-1/2 in.; LG: 3-1/2 in. - 4 in.; XL: 4 in. - 5 in. Essential to Care since 1979.