Yaktrax Hand Warmers

A top choice of athletes, skiers, campers, hunters, anglers, spectators, construction workers, and more, the Yaktrax Hand Warmers provide a safe, long lasting heat source so you can stay outside and enjoy the great outdoors longer. . Includes 2 warmers per pack. Provides up to 8 hours of safe, natural heat. Air activated and odorless. Environmentally friendly. Contents: iron powder, water, salt, activated charcoal, and vermiculite. Average activated temperature: 135degF 57degC