Mossy Oak Heat Factory Footwarmer Refill, 5-Pack
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The Mossy Oak Footwarmer is a soft, lightweight 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. These warmers are specially designed to work in an air restricted environment only. Works best in a shoe or boot for up to 6 hours of warmth. Made in the USA.