Need time to get going

Verified Buyer Reviewed by Ryan from Pittsburgh on Wednesday, November 23, 2016
These really put out, if you give them time to get going. My kids put some in their shoes immediately, and they only got warm. After a few hours, they took them out for the hike out of the crag, and after 20 min in our open pockets, they were super toasty and stayed that way for several hours more. Next time we will let them sit out, or sit in a well-ventilated pocket, for 3 min before putting them inside gloves or shoes.
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