This active midsole concept adapts to the changing footshape while loading and unloading bodyweight to the forefoot area, effectively storing and releasing power. The tensioned rubber enhances toe power providing a direct connection
among the front edge of the sole, the upper closure (lacing, Velcro®, elastic band) and heel area. The X-TENSION™ system supports the arch- and forefoot area without taking away sensitivity like stiff midsoles. X-TENSION™ is combined with half soles.