SOCK WOOL HEAT 7V L/XL

Includes: These socks get hot. Follow instructions and use them carefully. Touch-Button Temperature Control Special long cut pulls over your calf to fit any boot or shoe Moisture-wicking Wool Blend Fabric Microwire heating elements deliver evenly distributed heat Heats the entire bottom of your foot Estimated Heating Times: 7V Dual Charger Two 7V 2,200 mAh Batteries Two 7V Wool Heated Socks Medium (White): 120° F - 5 Hours High (Red): 140° F - 3 Hours Low (Blue): 100° F - 7 hours