GLOBAL VASION Heated Socks feature battery-powered low-energy mesh heater that gives ambient warmth to feet. The heating mechanism is powered by a lithium-ion battery that can be charged via USB.
They come in a variety of sizes to suit different feet, and the heating mechanism, as well as the lining, is removable so the socks can be machine washed. These socks are ideal for hunting expeditions during the colder seasons when you’re exposed to the cold for an extended period of time. They reduce the risk of frostbite and encourage proper blood circulation.
It retails for $42.99 on Amazon at https://www.amazon.com/dp/B07CZYQFZN/.