Heat Factory Footwarmers are designed for use with the extensive line of Heat Factory warmer socks and footbeds. When placed inside sock pocket or footbed, they will generate soothing heat for up to 6 hours. Ideal for use when fishing, hunting, skiing, or sitting around the camp fire. Sold as pairs ONLY.

The Heat Factory Footwarmer is a soft, light-weight pouch containing an inert mixture of iron powder, charcoal, salt, water and vermiculite. When exposed to air, a natural exothermic reaction generates consistent and prolonged heat. The footwarmer pouch is made of soft cloth lined with a very thin layer of porous plastic for maximum durability.

Size: 2.25"x3.5"