Works great, stays warm for a long time
Verified Buyer Reviewed by CO Mom of 4 from Rocky Mountains on Wednesday, January 21, 2015
These things start warming up fairly quickly. My only complaint is, it takes a little time before they get truly HOT. We use them in the kids' gloves for XC skiing; the first time, we just opened them prior to getting out of the car... learned my lesson and opened them (to activate) on our way up the mountain this time... by 20 minutes, they are HOT!
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