Creat.J-h Posture Aid Clavicle Brace  XXL  Black Posture-Support Back Brace with Breathable Straps Support brace gently pulls back shoulders to reduce back strain Helps improve posture, which in turn improves blood circulation Comfortable, breathable straps. Hand washable Can be worn discreetly under clothing Designed for men and women. XXL size5.57ft150-172lbJapanese size,smaller than the size in other countries