Heated Insoles for cold feet. We have a range of different heated insoles for use in cold weather to keep feet from freezing. There are battery insoles which can be recharged by purchasing a Lithium battery pack and charger, self heating Heaty foil insoles and Ceramic Infra Red Self heating insoles. We also have thermal wool insoles to add to wellies and work boots and Little Hottie instant heated insoles, providing a high temperature for a one off time. Whichever heated insoles you choose, you won't have to suffer cold feet, while out and about anymore.