?High Quality Material? Made by soft and comfortable 80% cotton, 12% polyester, 8% Elastane, the electric heated socks for men women are breathable, lightweight, elastic-thicken, windproof. Both the heel and the toe of these socks have been reinforced with durable elastane to provide long-lasting durability and can help reduce pressure on the toes and foot irritation, keeping you all-day comfort. ?Guarantee Warmth? Unlike other brand heating socks, BARCHI HEAT socks enlarge the battery heating elements covering to the whole toes area, instep, and foot front. We use far infrared heating elements for both heating layer and warm layer, which can stimulate your blood circulation at the same time keep your feet warm. Designed for arthritis foot, cold feet, and stiff joints. ?Motorcycle Foot Warmer?Packed with 2 pcs 7.4V/12V 2200mAh(can be last about 2-7 hours) rechargeable lithium polymer batteries, These battery operated heated socks are compatible for Motorcycle, simply connect the provided batteries to your vehicle’s battery for endless warmth that lasts as long as you are on the road. Please search: B08HQ9Y2TS to buy an adaptor to use this function. ?Easy to Use?One On/Off Button for 3 levels temperature control (High-Red, Medium-White, Low-Blue); Long Press for power on, single press to switch the temperature mode, the highest temperature can be reached to 140-150?, you can use under zero area, great winter warm gloves for camping, hunting, ice fishing, cycling, biking, motorcycling, running, skiing, snowboarding, and any other outdoor sports. ?Safety & Warranty? Are you worried about the safety of wearing heating socks? BARCHI HEAT heated socks had passed CE, UL, ISO9001 Certification, and we offer 30-day full refund/replacement, 12-month quality warranty. Please confirm your size before ordering and feel free to contact us for any question, we will come back to you within 12 hours, thanks.