Therm-ic Powersocks Heat Fusion Uni Heated Sock Black, 39-41

What Our Gearhead(R) Experts Are Saying: "I've used these on some truly frigid days, and the Heat Fusion system keeps my toes warm without ever feeling hot or sweaty. The micro-channel construction is impressive-it actually moves moisture out of the boot better than most ski socks I've tried. Pair them with S-Pack batteries and you get consistent, customizable heat that lasts all day."We reach for the Powersocks Heat Fusion Uni when long, cold days on the mountain demand reliable warmth and dependable comfort. Thermic engineered these heated ski socks to keep our toes warm without sacrificing breathability, so even when temps drop and the wind bites, our feet stay comfortable inside the boot. The targeted knit structure wraps the shin, calf, and instep in soft support, creating a secure, technical fit that holds up to aggressive skiing and long chairlift sessions. Moisture-Vent Technology draws sweat away from the arch, while integrated channels push it toward the outside of the boot-keeping us dry even when we're charging hard. Paired with compatible S-Pack batteries (not included), the Heat Fusion system delivers up to 16 hours of gentle warmth around the toes with three adjustable heat levels. For skiers who want dependable heat, solid moisture management, and close-fitting performance, these socks make any cold-weather outing feel easier to enjoy.