Mobile Warming 3.7V Standard Heated Insoles Medium Black

Keep your toes toasty and your feet functional the Fieldsheer® heated insoles are a savior for those who suffer from cold extremities. Featuring Odorsheer™ antibacterial construction that resists odors, as well benefits from a moisture-wicking high-stretch fabric to pull sweat away from the skin. These heated insoles use ultra slim lithium-ion batteries that power ultra-fine heating elements designed to provide instant heat on demand. The standard heated insoles are powered by our 3.7V rechargeable lithium-ion battery (3.7V 2200mAh) - reliable power in a compact package. The included AC wall charger (3.7V) charges both of your soles fast so you are ready to go quickly. The 3.7V DC output port is compatible with all of our standard heated socks.