Yes they work.

Verified Buyer Reviewed by Would if I could. from Lake Havasu City, Az. on Wednesday, March 9, 2011
I let my hands get cold snow shoeing and even back in the gloves I couldn't get them warm. I've always carried these and got to try them. Not only did they get and keep my hands warn, I continued using them when I got home. They stayed warm the whole 7 hours.
  • Was this a gift?: No
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