We positioned the AirConditioning Channel® under the foot-arch, the area of the foot that normally does not touch the ground. It begins there and then moves along the foot up to the cuff. Covering only 30% of the skin’s surface, it is constructed using a fine-knit mesh, so with every step moist air is pumped out of the shoe and fresh air is drawn back in. An optimal air circulation system for the foot is now a reality; fresh air can even be circulated within a snug-fitting boot.