[Material]Made of high-quality cotton, these socks have padded and reinforced heels and toes, and are designed with embedded heating elements that help focus heat on the toes to keep your feet warm and comfortable. Perfect for skiing, hiking, hunting, ice fishing, and any other indoor/outdoor activity in cold weather. [Three Available Temperatures]There are three modes available, allowing practical and simple operation without overcomplication or unnecessary features. Once you connect a power bank, press and hold the power button for a few seconds to activate the system, a single press will cycle through the three heating modes. [Washable Electric Heated Socks]The power interface is an insulation and waterproof design, after removing the battery, these heated socks can be washed by machine or hand. In order to protect the wires, please be sure to put socks in the laundry bag when using the washing machine.recommend hand washing them in warm water with mild detergent, no machine dry, only hand dry or towel dry. [Hidden Pouch To Hold Battery]There is a pocket on the outside upper part of each sock. Insert the battery and put it in the battery bag, wherever you go you can enjoy the warmth, it is really convenient and practical. [Perfect for Variety of Sports Outdoors]This heated socks keep your feet warm and comfortable all day in cold weather, making them ideal for hunting, skiing, ice fishing, hiking, climbing, running, walking dogs, snowboarding, motorcycling, riding, and other indoor/outdoor activities. Specifications: Material: cotton Weight: 0.18kg Size: As Shown Color: gray, black Package : 1 pair Heated Socks with Adjustable Temperature NOTE: Please allow slight measurement deviations due to manual measurement. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed in the pictures.