Fieldsheer Mobile Warming Heated Merino Wool Socks feature advanced heating technology to keep feet warm and comfortable in cold conditions. These over-the-calf socks use Mobile Warming Heat Technology with low-profile heating panels positioned under the toes to deliver warmth across the entire foot.

Powered by a Powersheer USB-C 3.7-Volt lithium-ion rechargeable battery, these socks provide up to 16 hours of heat on a single charge. The wireless 4-button remote control allows easy temperature adjustment between four selectable heat settings without removing shoes or boots. Hidden wiring and a calf-contoured battery compartment ensure a comfortable fit during wear.

The sock construction features a premium blend of 54% Merino Wool, 37% Nylon, 6.6% Polyester, and 2.4% Elastane for natural anti-odor properties, moisture-wicking performance, and enhanced stretch. Heavy cushioning in key areas provides comfort during extended use. Available in Medium, Large, and Extra Large sizes.