YakTrax Foot Warmer Insole

Yaktrax® Foot Warmers are a safe, easy, and all-natural solution to dealing with cold feet. Once opened and exposed to oxygen in the air, these disposable but environmentally-friendly warmers begin working in just minutes. Slide them inside your boots to create a warming barrier for your feet 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.

Product Features:

• Full-length footbed
• Air-activated simply by opening the package
• Environmentally-friendly
• Odorless
• Safe natural heat
• Soft fabric top cover
• Warms to 105°F (40°C)
• 2 pair of warmers per pack (4 pieces total)
• Thickness at forefoot: 1.4 mm
• Thickness at heel: 1.4 mm
• Weight: 1.3 oz (Small / Medium)

Ideal For:

• Shoe type: Athletic, Boots, Casual, Dress
• Activity type: Running & Walking, Court Sports, Standing, Hiking & Outdoors, Golf, Cycling, Football and Soccer, Casual

For Sizing:

• Small to Medium is ideal for Women's shoe sizes 5-8 and Men's shoe sizes 7 and under
• Medium to Large is ideal for Women's shoe sizes 9+ and Men's shoe sizes 8+

Directions:

• Open the plastic wrapper pouch that a pair of insole come in
• Do not trim insoles
• Place the Yaktrax foot warmers in the shoe/boot fabric side up
• Slide each insert to the front of the toe box
• Maximum heat may take up to 20 minutes

Note: Please read the warnings and precautions on the foot warmer package. These foot warmers are the ideal solution for keeping your feet naturally warm and not dealing with battery powered insoles, microwaving, nor fueling. Not ideal for open (or ventilated shoes) such as slides or any shoes that do not fully cover the foot.