Great! (when they work...)
Verified Buyer Reviewed by HikeHikeHike from NYC on Monday, February 15, 2010
So far, out of about 10 packs, 3 packs were duds that either didn't work at all or barely got lukewarm. I've heard that their efficacy decreases as they get older, so maybe they've been in sitting around too long? (One pack i just ordered earlier this month. The other 2 were less than a year old.) I didn't notice any tears in the packaging that might've activated them by accident. This pretty much wipes out the discount, [...]boooo... But when they work, they save you from frostbite and painful fingers and toes... If they were more reliable I'd give them 5 stars.
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