Get ready for your winter adventures with these innovative foot warmers. Designed for winter sports enthusiasts, these app-controlled electric socks are an absolute game-changer. With a long battery life and fast charging capabilities, they are perfect for your winter sports needs. The medium-sized black socks are made of washable fabric and come equipped with app-controlled features. Whether you're skiing, snowboarding, or snowshoeing, these foot warmers are perfect for keeping your feet cozy and comfortable all day long.