Product Description

Thanks to their patented Microwire heat technology, Heated Sock Liners keep your feet warm, dry and comfortable for up to 10 straight hours. Small rechargeable batteries tuck away in the calf straps, so your feet can slide easily into outer socks, shoes, boots and even ski boots. These Heated Sock Liners are constructed with a stretchy moisture-wicking material that conforms to your feet for a great fit. Features four heat settings (100%, 75%, 50% and 25%) and a Red/Black color combination. Available in Women's X-Small (4- 5½) and Men's XXL (15-15 ½).