In this shoe you walk on as foam rubber similar to "Adiprene" of Adidas. Through the holes in the sole but only little air circulates, this through the holes in the front cap and the net-like fabric on the side. The holes in the sole ensure fast for wet feet if the ground is wet (puddles) and keep unfortunately small granules to not penetrate into the shoe. Since Adidas has built the advantage and a fine fabric which protects before and just this shoe really missing.
Who chooses the shoes like me rather than leisure sneaker gets a very light, comfortable and airy shoe with a removable insole with slight Fußbettunterstützung. This makes it eg sightseeing and similar activities to great companion. If it had been some wet feet, that's not bad, because the water is relatively easy to escape from the shoe and dries quickly.
Note to K-Swiss designer: concept of the shoe basically good, but please "crumbs protective fabric" Install.