The [shoe] has a Strato sole and therefore a higher Rebound-Effect. The Strato sole is designed to roll better in the backfoot area than previous kybun soles. This type of sole offers maximum effect as well as the ultimate in training performance and absorption. The foot pressure is evenly distributed and the full strength of the body is optimised. The elastic and springy material compensates poor postures and misalignments by stretching the posterior muscle chain with each step and the full-length sole profile with larger contact area to the ground ensures optimal grip on any surface.