Product details
Apply them directly to the top of your socks to form a radiant barrier of warmth inside your shoes that lasts up to 5 hours. Yaktrax Warmers are the ideal choice for outdoorsman, winter athletes, spectators, and anyone who works or plays outdoors. 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.
Features:
• 1 pair of adhesive backed toe warmers; each pair provides up to 5 hours of heat
• Safe, natural heat; odorless and environmentally friendly
• Air activated warmers begin working upon opening
• Ideal for keeping warm when camping, hunting, fishing, skiing, watching sports and outdoor events, and more
• Dimensions per warmer: 3.5 x 5 x 0.25 inches