HEAT Factory Toe Warmers

Little envelopes of warmth that slip inside your footwear. Designed to work in a shoe or boot with restricted airflow. Simply open the package, peel off the backing, and place them on the outside of socks, under the toes. Once you open the outer envelope, exposing the inner envelope to air, an oxidation process produces heat. The dry chemicals are non-toxic, clean, safe, and biodegradable, for heat without fumes or flames. These warmers feature a unique "Stop and Go" process for conservation. Placing the warmer in an airtight container (such as a film canister) saves any remaining heating time. The remaining time can be used later (preferably within one week). For example, a 5-hour warmer can be used for three hours one day, stored in an airtight container, then used again for approximately two hours another day.

• Sold in pairs.
• Lasts five to six hours.
• Non-toxic.
• All contents are all biodegradable: iron powder, charcoal, salt, sawdust, and vermiculite.