Rubber outsoles offer the optimal balance of traction and durability, with a responsive feel on unpredictable terrain.circular lug patterns provide grip during movement | Removable insoles support the feet’s arches and not cause too much pressure and transfer weight over the ball of the feet. | Thicker topline wrapped perfectly around feet, which make shoes not fall off during exercise | Integral knitted upper structure makes your feet feel lightweight and breathable | The purpose of minimalist shoes is to give our feet maximum amount of freedom to move and function as if we are walking barefoot.