Gerbing 12V EX Heated Pants Part of Gerbing's most technologically advanced riding system, the waterproof, seam-sealed coreheat12 EX Pant has a full complement of certified impact protectors, ample storage and full integration with the EX Jacket to keep you moving at speed in any condition. The waterproof LTD (liner to drop) construction is a removable water liner. The Coreheat12 Thermovelocity System is powered by a simple connection to your motorcycle's DC power system. A combination of Gerbing's patented microwire heating technologies in conjunction with the 12 volt electrical system on your motorcycle keeps you warm at speed. Features Thermal resistors installed on each individual heading pad act as a solenoid to eliminate hot spots and overheating 500 Denier Courdura outer shell Direct ventilation on each thigh Removable waterproof liner Removable thermal liner contains heating elements Superfabric at the knees Knox armor at the knees Leather grip panels on the inside of each knee Includes battery harness Max Heat 135F 77 Watts Power 12V DC 6.4 Amp 1 year warranty Note RevZilla finds the Gerbing EX apparel to fit a bit small and would advise ordering at one size larger than you would typically wear.