I don't know why I thought I would be the exception and get the only good pair. Right out of the box the zipper ...
Definitely do not buy these.<br />If there were a 1/2 star, or maybe a -1 star I would use that rating.  I read reviews on other Heat Factory products (gloves) and many complained about the low quality zipper to hold the hand warmer in.  I don't know why I thought I would be the exception and get the only good pair.  Right out of the box the zipper jumped the track and when I tried to reverse it, the zipper handle snapped off.  Now it won't open or close.  The other zipper handle didn't break off, but it won't open or close and it is stuck off track.  So now when I use it with a hand warmer, all the heat will escape.  But, they are black colored like in then picture, so they get 1 star for that :)
Rating: 1 stars