Solecooler Climfeet Self-Cooling and Heating Insoles
It sounds like an impossible claim, but the Climfeet insoles promise to either warm or cool the wearer’s feet using just the motion of the steps they take. The insoles are made of a grid of sealed bubbles: each having two separate chambers. As the user walks, air is forced back and forth between each chamber, and depending on which side is facing up, it can effectively produce a temperature difference, even if it’s just a few degrees.
