Leverages ZEPTO« fibre technology, these heating fibres are so thin, wouldn't be able to notice if not for tremendous heat output Soft, drum-dyed leather construction with an extra-long gauntlet and hook-and-loop closure Elements heat entire length of each finger, thumb and back of hand Innovative rain squeegee wiper on the thumb of the left glove to help wipe the water off Windproof, waterproof and breathable PORELLE insert keeps your hands dry Pair of gloves produces 29W of heat and draws 2.1A For use with GEN X4 Warm Tek heated jacket liner: no additional hook-ups are required; simply plug directly into the plugs hidden in sleeve ends GEN X3 and GEN X4 are fully compatible. Connect electrically heated gloves directly to the 12V battery in your motorcycle, snowmobile, or ATV for non-stop heat or connect to a portable battery (sold separately) to stay warm if you're not riding.. GLOVE HEATED X4 BK LG