The ActionHeat battery heated insoles are the ideal option for anyone with cold feet! whether you are hiking your favorite trail in the poconos or deer hunting in Iowa, you will love the warmth and comfort of the ActionHeat insoles. With built-in, ultra fine heating panels strategically placed under the toes, they are the excellent heated insole option on the market. The easy-to-use controller has three-heat settings and the insoles can last up to 8+ hr while reaching up to 140 deg F with a push of a button.