Keep your feet warm on cold winter days with the versatile and practical ActionHeat Classic AA Battery Heated Socks. They are made of the perfect combination of Spandex wool and cotton to ensure years of durability. They use advanced technology to warm the core body temperature. These heat socks for women and men can reach a maximum temperature of 130° F and can last up to 4 hours. Simple and easy to use they feature integrated heating panels to offer a perfect blend of warmth versatility and comfort. You can handwash them or you can use a mesh wash bag for gentle machine wash. Each set comes complete with (2) ActionHeat unisex fit socks and (2) AA Power Packs. These heated socks with batteries come in black and grey color and S/M L/XL and XXL size options.