Inspired by the Southwest Anastasi tribes who ran long distances barefoot the Men's Free 5.0 V2 running shoe is stable and enhances foot and leg strengthening. With a featherweight Phylite midsole formed into an engineered pattern of lateral and longitudinal flex grooves the Men's Free 5.0 V2 mimics the motion of your natural foot. Add the medial variable lacing system highly breathable stretch vent upper waffle outsole and you've got a fit with cushioning that feels like you're wearing no shoes at all--only better.