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