Ultimate Back Support Increases support for back strains, sciatia & more Firm, structured support through the eight flexible steel springs surrounded by a soft foam padding for extra comfort. Lightweight, flexible back brace conforms to the anatomical structure of your back offering increased support for back strains, sprains, sciatica and more. Adjustable tension straps ensure a custom fit. The Ultimate Support Range uses AIRFLEX Technology to facilitate faster recovery thanks to its therapeutic properties. AIRFLEX is an ultimate breathable material that provides the optimal level of compression and heat retention to help improve blood circulation and reduce pain. Product Code: PX3518 One Size, Fits Left or Right 56% Polyester, 21% AIRFLEX (Neoprene), 14% Rubber, 9% Nylon.