Inspired by the sight of athletes practicing without shoes at Stanford University, the innovative designers at Nike set out to produce a shoe that would provide a minimal and natural sensation. The Free 5.0 'Blue Lagoon' is crafted with a lightweight knit mesh upper, reinforced with exposed Flywire and synthetic no-sew overlays for added support. Its Nike Free Phylite sole incorporates hexagonal cuts, ensuring maximum flexibility for the foot, while key zones are fortified with rubber for enhanced traction.