Venture Heated Clothing MC-20 XLG 12V Heated Unisex Nylon Pants Liner Heating Location: Legs Heating Panels: Hair thin, micro alloy heating elements - No Coils The fabric is waterproof with 100% nylon, 100% polyester lining and filling Heating time instantaneous - continuous heat Temperature controller had 4 settings and 12V controller included with LED Power: Coax plugs with integration ports, 12 -13.8 VCD