Yes. I had a pair of those and a pair of gloves - both ran off C Batteries that I used when I walked to work while living in Indiana. I walked to work in temps as low as -15 with wind chills even colder and never had cold feet or hands. The neat thing about them is: the batteries sit in a pocket and aren't acitivated until you "snap" the pocket closed. So when you get to your destination, you just unsnap the pocket and shut the heaters off.

Funny you would show that: I was thinking about getting pair of gloves for this years winter commute since the Weather Channel told me this morning the nation as a whole is averaging up to 40 degrees Below normal for this time of year!