?Soft Breathable Insulated Material? Made by soft and comfortable 80% cotton, 12% polyester, 8% Elastane, the 2020 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 ?Heating Elements Covers Whole Toes Area-Warm up within 30s?BARCHI HEAT heated socks upgraded the heating elements covering the whole toes area, instep, and foot front. We use far infrared heating elements for both the heating layer and warm layer, which can stimulate your blood circulation at the same time keep your feet warm in 30s. It is Designed for arthritis foot, cold feet, and stiff joints. ?3 Heating Levels - Easy to Use?The heated socks are easy to operate, even for elders- Red light is High level, temperature is 140-150?, White light is Medium , temperature is 112- 131?, red light is Low, temperature is 100-113?. We suggest starting in high level for 15 mins, then turn to medium or low, you will feel all day warm! Perfect heated socks for winter camping, hunting, ice fishing, cycling, motorcycle, skiing, snowboarding etc. ?7.4V 2200mah UL/CE Certified Li-ion Batteries?The heated socks includes a pair of CE,UL ISO9001 Certified li-ion rechargeable batteries. The battery powered socks can last about 3 hours in high mode, 4.5 hours in medium mode, and 7 hours in low mode, 3-3.5 hours fully charged. If you need more time lasting, please buy extra 7.4v 2200mah batteries (sold separately),search: B08HQTP7DS.The heated socks also support 12v charged, please search: B08HQ9Y2TS for an Motorcycle Power cable. ?Warranty?12 months warrenty, 3 colors option, and S, M, L, XL Size for choose,suitable for men and women. 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.