Heat Factory toe warmers are designed for use in the restricted air environment of a shoe or boot. The half moon-shaped toe warmer adheres to the bottom of your sock for comfortable warmth. Ideal for daily use in shoes, ski boots, or whenever toes are cold. Provides soothing, gentle heat for up to 6 hours. Not intended for use in open air. The Heat Factory warmer is a soft, lightweight pouch containing a biodegradable mixture of iron powder, charcoal, salt, sawdust and vermiculite. When exposed to the air, an oxidation process takes place that generates heat. Heat Factory warmers are specially engineered to provide heat that is long-lasting, comfortable and even. Heat Factory continually tests its products to ensure that you receive only the highest quality warmers that will consistently deliver warmth as advertised. Once activated, Heat Factory warmers can even be saved for later use (preferably within a week) if placed in an airtight container. Unopened, the Heat Factory warmer has a shelf life of three years or more.
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