Therapeutic relief for back aches and tension. Soft, durable, 100% poly-fleece with a black coton-poly elastic trim, broad hook-and-loop attachment for a comfortable, secure fit, and four buil-in body warmer pockets, this warming wrap maximizes winter comfort. Available in black. Sizes S/M and L/XL. Four heat-pax body warmers (20 hours of heat) included with purchase.