Firstgear 12V Heated Socks The Firstgear 12V Heated Socks will keep you toasty where it matters most. The comfortably thin form-fitting stretch micro fleece reduces bulk when worn in another sock or boots and uses the latest in flat heat technology. Hook up the socks to Firstgear's Heat-troller through Heated Pants or a Long Y cable to power them alone. Features Thin, form-fitting, moisture-wicking, stretch micro fleece Equipped with heat elements to keep toes warm Powered by vehicle battery Connects to Heat-troller through heated pants or long Y cable (both sold separately) 9 watts of heat (a draw of .7 amps at 13.8 volts) in each sock Note: Heated socks only. Heat-troller and long Y cable sold separately.