Design inspiration taken from Tornadoes, Ocean vortices quantum black holesâ¦. The energy assumulated in the center of the vortex circulates through the spiral structure. Explosive powerful devouring ability. Xtep damping rotation upgrade cushioning system design Absorbing energy to absorb shock, running without restraint. The dynamic cushioning bionic sprial gradient structure, cushioning and supporting performance increase gradually, step on the vortex under your feet, the energy cycle will run without fear of impact. The breathable upgrade upper is designed with a breathable window to keep fresh and breathable while enhancing the support performance. Butterfly texture design combined with TPU material to enhance stability and improve the fit during the running.The block type anti-Skid pattern design improves the grip during running for different stressed part of the footsteps, with out fear of running