Have now taken a few days these very comfortable sneaker. The shoe is very comfortable and has with me no adjustment period needed to adapt to the foot. As is known from Geox, catch your feet even after prolonged wear (8 hrs.) Not to sweat. The material is very high quality (in combination with suede leather and "nylon") and one hardly sees the dirt on the side outsole, because do not know, but medium gray. The only drawback may be the material of the inner sole (leather). Because the leather is more slippery and the walk something in place while brisk pace. For sporty types and for those who are very many KM on foot the shoe will be ideal. I am very pleased at least and will certainly detect the U Speed series yet a summer version, because even the price-performance ratio with scarce 60 matches.