Size: XL: Back strap: 21*22 cm    Waist strap: 86 cm    Shoulder strap: 31 cm<br />           L: Back strap: 19.5*19.5 cm    Waist strap: 82 cm    Shoulder strap: 30 cm     <br />           (All sizes has good elasticity.)<br /><br />Color: White<br /><br />Material: polyester，latex，and PVC<br /><br />Package Included: 1 x Back Brace Elastic Belt