The FIRSTGEAR Heated Sock uses micro fleece and flat heat technology to keep feet warmer without adding bulk, fitting comfortably under another sock or inside boots. Thin, stretch fabric wicks moisture while integrated elements warm all toes and deliver 9 watts per sock at a 0.7 amp draw (13.8V). Coaxial plugs allow Heat-Troller hookup or use with an extended Y cable; heat troller not included. One-year warranty.
FIRSTGEAR Heated Socks - 2XL