This shoe was ordered to replace a leather pair of running shoes which I wear at work. 12 hour shifts in a hospital with cement floors. I could not believe how light these felt right out of the package. They are very comfortable and breathe like nothing I have ever worn. You can actually feel the breeze as you walk. First night with these at work and the nightmare happens....blood is dripped on them. A little Hydrogen Peroxide and blotting with a damp cloth and blood is gone. I absolutely love these shoes!!, will order another pair when these wear out. I have only worn them for about a month and they are holding up thus far. They shipped fast and package was undamaged. I would recomend them to anyone looking for a light, breathable shoe.