Great for Mountain Biking in Winter

Reviewed by Old guy at the back of the line from Central PA on Wednesday, January 5, 2011
I put these on the top inside of my biking shoes and wear shoe covers. I can keep going in the cold with the guys that spend 100's for their winter riding boots.
  • Best Uses: Biking in Winter
  • Pros: Doesn't over heat, Stays in place in my shoe
  • Was this a gift?: No
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