Developed using data collected from competition runners, the Nike Free 3.0 Flyknit is engineered for a more natural, weightless ride. This issue has a full tonal upper crafted from adaptive textile, a reinforced heel cup and a molded sockliner for a contoured internal feel. Swoosh overlays enhance durability at the sides while Flywire lacing personalizes the fit. Its dual-tone sole unit promotes intuitive flexion and grip.