The Posture Aid Support is designed to help pull the shoulders back and straighten the Spine. The Elastic Strap is made with two sturdy shoulder straps that come together at a sturdy two ply back panel that has an adjustable Velcro closure system to fit.<br />Materials:<br />Main (Rubber Part): 100% polyester<br />Attached Part: Synthetic Leather<br />Attention: Item will be sent without box to reduce postage