Mobile Warming 3.7V Premium 3.0 Merino Heated Sock Gray XL

The Mobile Warming Premium 3.0 Merino heated socks are powered by Powersheer Micro BT 3.7V lithium-ion battery that provides long-lasting warmth for up to 10 Hrs on a single charge. The Premium 3.0 Merino wool heated socks are a thoughtful blend of comfort and Fieldsheer's Mobile Warming technology. These heated socks take all-day comfort to the next level. Whether you're in deep backcountry powder or an early morning job site, keep your feet warm and improve circulation to avoid stiffness, muscle fatigue, and soreness. With heavy cushioning in key areas and heating elements under the front of the foot, you can avoid the discomfort and numbness that come with being outside in cold conditions. The Merino Wool blend is breathable, and the full-calf length provides comprehensive coverage.