Rechargeable Heated Insoles, Waterproof Electric Heated Foot Warmer Insole Heater Description: Cold toes are common for outdoor adventures to be cut short, whether you are hunting, ice fishing, working, or skiing. The Rechargeable Heated Insoles are your best option for battling cold winters and cold feet. Our heating technology utilizes the safest, bring you effective heat that will literally melt the ice. Now your feet can stay comfortably warm even in extreme winter weather with our Rechargeable Heated Insoles. Whether you are hiking or deer hunting in Iowa, you will love the warmth and comfort of the Rechargeable Heated Insoles. CUTTABLE SIZE - The heating sole can be cut and shaped. USB RECHARGEABLE - large heating surface, even heat distribution. The heater is comfortable with the USB interface. The heating sole is used for heating via the USB cable. WIDE APPLICATION - Perfect for outdoor activities skiing, hiking, fishing, cycling, hunting to prevent your feet from cold. Against the cold in the household, outdoor cycling or work in the cold outdoors. Temperature: 40-50 degrees, depending on the environment Size: Small: 230mm-260mm; Large: 245-270mm ( You can cut according to your own level of comfort and size) PACKAGE INCLUDES: 1 pair x Rechargeable Heated Insoles 1 pc x USB Charging Cable Label: Yes Material: PU Material: polyester 100% Label: Yes Washing care: Hand or machine wash maximum temperature 30, line dry,iron at low temperature