Grrrrr cold hands in winter in town or on the chairlift? The Yaktrax heater provides 8 hours of natural heat after opening! A small 45 g sachet to always keep in your backpack. Yaktrax hand warmers are very popular in winter with people suffering from Raynaud's syndrome. How it works ? When exposed to oxygen in the air, the iron filings inside the pocket begin to oxidize, creating a rapid rusting process which in turn produces waste heat. The salt acts as a catalyst, while the carbon helps disperse heat evenly. Vermiculite acts as an insulator that prevents heat from dissipating too quickly.

Features of Yaktrax hand warmers:

• Sold in 6 pairs
• Provides 8 hours of heat
• Weight: 45 g per pair
• Instructions for using the heater: open the bag, shake it in the air for a few seconds and insert it wherever you want: gloves, pockets, hold it in your hand, place it on your ears, etc.