Adidas shoes are already very small, so order widening. Sole is a mallet. I run without having to make me ever thought if I slip. Strong profile, engages in super terrain. Shoe springs also good. Goretex was also critical. Fit itself is a bit strange in the beginning, the shoe is cut somewhat lower than usual, it encloses the heel, although good and firm. but sits lower. But there is no danger of tilting of the shoe. My husband wears the corresponding model for men and is also very fond of the shoe.