Great for skiing when cold.

Verified Buyer Reviewed by Robthe blather from North Dakota on Thursday, February 5, 2015
My feet get cold. I frost bitten them too many times. I've tried battery powered boot liners, which work great for a while, but then something goes wrong. Since I've started using Grabbers... problem solved. They last as long as I'm going to ski, climb, hike, or snowshoe. And when camping, there is absolutely nothing nicer than a putting on a warm pair of boots on an icy morning. I don't know if their temperature estimates are accurate, but these thing always work well for me.
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