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Your cart is empty.Up to 8 hours of warmth Average temperature of 100 degrees Safe for travel Designed for 1-time use Shelf-life of 3-4 years
Crystal Chambers
Reviewed in the United States on February 5, 2024
It's almost as if the adhesive backing prevents the heat activation. Either that, or the fact that it doesn't get much air in your boot. Nonetheless, didn't work for me.
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