Sole: Made with X10, a highly resistant material that will make the sole of this shoe last for many kilometers, the part of the heel has been divided into two parts and is designed so that the first impact with the ground is soft and distributed, the area The metatarsal has seven parts with the same function of distributing contact with the ground evenly and also favoring momentum when running, the three grooves make the shoe much more flexible. The sole has a large groove from the toe to the heel that favors the uniformity of the tread making it more efficient. Recommended terrain: asphalt, although I have run on dirt roads perfectly. Midsole: Here we find the greatest improvement of the Wa...