Grabber Footwarmers are excellent if you need to stand in the cold for several hours or if you have footpain that is triggered by the cold. They are an excellent product at an excellent value.
My Husband uses these for hunting. He says that they keep his feet warm while sitting for a long period of time, They are not hot, just right . But the sizing could be better as he has to push them to the front for his toes, but it does not bother him or feel funny in his boots when walking.
These things work as expected. The intent is to keep your feet at body temperature. I just used these over the weekend on days where the temperature was ZERO... they worked. I like the fact there are no wires (I have ski boot heaters with wires and BIG batteries). The smartest way to use these insoles is to put them on medium to get the maximum time.
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