Our shoulder brace can be used for both RIGHT and LEFT shoulder, easily adjustable, strong velcro straps and high quality plastic buckle design for adjusting on right or left shoulder, support to be fit on your shoulder, users can adjust the length in accordance with individual demands, both suit for men and women. Chest adjustment ( adapts to chest measurements from 31''-55'' ), underarm adjustment ( fits arm circumference from 9''-17'' ).