This is the back wrap that helps relieve pain using a patented technology that has been clinically proven to increase blood flow. Available exclusively from Hammacher Schlemmer, the wrap is interwoven with strands of Celliant, a thermo-reactive mineral matrix that converts released body heat into therapeutic infrared light that is reabsorbed back into the skin. Studies conducted by Loyola University Medical Center, the University of California Medical Center, and an independent Houston-based research firm showed that the safe, invisible infrared energy generated by the fabric in sock, glove, and shirt form significantly increased blood flow. Optimized blood flow—in addition to helping regulate body temperature—has been a reliable method for decades to counteract chronic aches and inflammation that can impede daily activities. The support wraps around the lower back (over or under clothing) and stays in place via hook-and-loop fasteners to ensure stability throughout the day. Machine washable; Celliant will not wash out or diminish with wear. 65% Celliant/35% polyester. Neoprene cover. S/M (24"-38" waist circumference), L/XL (39"-54"). (10 oz.)