The fortuna neoprene back support is made from high quality neoprene rubber that provides constant uniform compression and support it also generates and retains warmth that increases blood circulation to the injured area thus promoting natural healing and comfort in addition the warming effects on muscles and joints increase flexibility to help prevent sporting injuries product code ft sn 001 small ft sn 002 medium ft sn 003 large ft sn 004 x large ft 1388 xxl measure around h