Ring heated socks: Rechargeable heated socks are equipped with a ring-shaped heating element. The heating surface is twice as large as other heated socks, which means that the heat can be increased very quickly and the heat can be retained better<br> Heat evenly 360 degrees.Flame Retardant Safety Cotton: Heated socks are made of safety material. Specially developed breathable, quick-drying, flame-retardant cotton makes you feel more secure during use. More importantly, the far-infrared heating elements in the heated socks can stimulate blood circulation. 65 erwrmen, Ihre Fe sind im Winter nicht mehr kalt. Die Heizsocken haben drei Heizstufen: hoch, mittel und niedrig.Washable and medium size: Our heated socks can be washed by hand and machine. Mid-size unisex electric warm socks. One size fits everyone, super elastic and stretchy for adults, men and women, the long sleeve cotton socks can cover the calf and keep you warm and fashionable. A great winter gift for yourself, family and friends.Perfect Multi-Scenario Use & Best Gift: Heated socks are perfect for hunting, skiing, fishing on ice, hiking, sporting events and working outdoors. Heated socks are a great choice to keep your feet warm in winter. Heating elements that can stimulate blood circulation, so they are also ideal for sufferers of Raynaud's disease, arthritis and colds.