RECHARGEABLE 3.7V HEAT for hiking-socks comfort that stays warm on cold outdoor days WOOL BLEND COMFORT with hiking-socks softness that keeps feet cozy in cold weather outdoors ADJUSTABLE HEAT SETTINGS with hiking-socks warmth you can tailor to changing temperatures DURABLE OUTDOOR DESIGN with hiking-socks construction that stands up to cold-weather adventures LONG-LASTING BATTERY LIFE with rechargeable power that keeps hiking-socks warm through extended outdoor wear Stay comfortable when temperatures drop with Fieldsheer Unisex Wool Blend Heated Socks, a warm, comfort-fit solution designed for cold-weather outdoor use in classic black, powered by a 3.7V rechargeable battery system that delivers consistent, on-demand heat right where you need it most—your feet. Built with a soft wool-blend knit that balances insulation and everyday wearability, these socks are made to layer easily inside boots without feeling bulky, helping you stay focused on the trail, the jobsite, or the ride instead of numb toes. Fieldsheer’s performance-and-technology heritage shows up in the way these socks are engineered: dependable battery-powered warmth, a secure fit that stays put through movement, and a practical design that supports long days outside, whether you’re standing still in freezing conditions or staying active on the move. Ideal as hiking-socks for brisk mornings and winter treks, they’re also a smart choice for camping, hunting, outdoor work, commuting, and any situation where steady warmth makes the difference between cutting the day short and pushing farther.