A top choice of athletes, skiers, campers, hunters, anglers, spectators, construction workers, and more, the Yaktrax Foot Warmers provide a safe, long-lasting heat source so you can stay outside and enjoy the great outdoors longer.
- Fits women’s shoe size 5-8 / men’s size 4-7
- Includes 2 warmers per pack
- Provides up to 5 hours of safe, natural heat
- Air-activated and odorless
- Environmentally friendly
- Contents: iron powder, water, salt, activated charcoal, and vermiculite
- Average activated temperature: 105°F (40°C)