Unlike many other modern gloves which are designed for extreme weather, the Heat 3 Smart gloves are not equipped with battery powered heating systems. In order to give you the necessary protection against the cold, these gloves rely on superior craftsmanship and the incorporation of high quality materials. The outer shell of the gloves is made from elastic microfiber which makes them waterproof, windproof and breathable. The palm of the gloves is covered in goat leather for increased grip and durability, while the insulation used in these gloves is Primaloft which will make sure that your hands are kept warm.