Therm-ic Set Heat Flat + C-Pack 1300 Heated Ski Insoles, Black

The Set Heat Flat + C-Pack 1300 by Therm-ic is a pack featuring heated soles and two rechargeable batteries.Heat Flat heated soles are very thin and can be easily cut to the size of your feet and shoes. High-quality heat elements to keep your feet at an optimal temperature. The soles can be used in all snow and ski boots.C-Pack 1300 batteries offer up to 13 hours of heat to keep your feet warm.3 heated layers, they're designed to keep your feet warm all day long.Charge duration (heating times indicated are intended as a guide only and are not contractual): approximately 6 hours.