I ride a bike in the morning and these certainly take the chill out of the toes. They are thin and fit well into the shoe without taking up too much room. They stay a nice even temp. They do not stay warm as long as the package says but still happy. The vendor had a great price and delivery was fast.
The first time I used the warmers, my feet became Happy Feet! Have not tried them for very cold climate yet...32 degree night only thus far. Will update review after weekend in January in NYC.
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