Adventure Pack - Case of 12 | Yaktrax

2 PAIRS OF HAND WARMERS, 2 HAND & BODY WARMERS, & 2 PAIRS OF TOE WARMERS SAFE, NATURAL HEAT ENVIRONMENTALLY FRIENDLY AIR-ACTIVATED Stay warm and cozy while the weather is cold as you hit the trails, tailgate, campsite, slopes and more. The Yaktrax Adventure Pack provides warmth from head to toe for 2 people or 2 days. They are odorless, environmentally safe and provide heat from 5 -18 hours depending on the specific product. HOW IT WORKS When exposed to oxygen in the air, the iron filings inside the pouch begin to oxidize creating a rapid rusting process which in turn produces residual heat. Salt acts as a catalyst, while carbon helps to evenly disperse the heat. Vermiculite acts as an insulator that helps prevent the heat from dissipating too quickly.