It is a training shoe with slightly bigger heel-to-toe drop. It is relatively light and perfect for long, fast endurance runs. This extraordinary shoe draws on the proven Formotion System by Adidas while enhancing it with an arch technology. This offers a pleasant cushioning effect when rolling your foot over from the heel to the toes. The effect is produced by special notches in your heel that are pushed together upon impact and then release kinetic energy when they return to their original position. An attempt was made to copy Adidas‘ product language in order to develop a product that matched fictitiously.