UNIVERSAL SIZE OF HEATED SOCKS FOR WOMEN AND MEN Warm all winter Unisex size Suitable for various sizes, suitable for indoor heating or various outdoor activities. These heated socks are machine washable or by hand. Heat and safety Thermostatic heating socks It has very good water absorption, breathability, flexibility and softness suitable for adults, men and women. It provides comfortable and even heating for your feet while improving blood circulation, keeping you warm in the winter. Preferred hand wash, please remove batteries before washing. Winter warm socks Our battery heated socks can be heated to a constant temperature of 50 C. They maintain normal body temperature to prevent excessive temperature regulation and cause physical discomfort or damage to local skin, so if you want to wear two pairs of socks, heated socks should be close to the skin. Comfortable material Warm heating socks are made of high quality thin cotton. The outermost insulation layer can effectively block the inner body temperature and block the convection of hot and cold air; the middle is a heating wire that heats up quickly; the innermost fleece layer adapts to the human skin for a comfortable experience. Heated socks with constant temperature heated socks are thermostatically controlled, so that the temperature remains constant on the initial setting and does not decrease, keeps your feet warm and comfortable even in cold weather. Versatile use Whether you're relaxing indoors or outdoors in the winter, these foot warmers provide your feet with the warmth they need. It is also a great solution for patients with Raynaud's disease and those suffering from arthritis. Our heated socks are a very thoughtful winter gift. Great gift for winter Heated socks are ideal for all kinds of indoor and outdoor activities such as hunting, hiking, horse riding, fishing, cycling, driving, running, camping, skiing, hiking, sleeping, etc. Socks are also an ideal gift for parents, friends, family and the elderly. Give them the perfect gift in the form of warmth to survive the cold winter months together. Specification: Product Type: Heated Socks Material: cotton Color: Black Package weight: about 154 g List of packages: 1 x Pair of Heated Socks 2 x Battery Case