Design: Engineered mesh on the upper enhances breathability and comfort. Its conforming fit gives you a disappearing sensation that is built to go the distance Bill Bowerman, inspired the Blueprint collection design details, like the speckled Swoosh logo and sketches of feet on the insole In-Shoe Comfort: Full-length ZoomX foam, Nike's lightest and most resilient foam, provides energy return with each step Durability & Traction: The new full-length plate material is lighter than the previous version while maintaining durability, the curved design gives you a propulsive feel Elevated the big-toe side platform and updated the heel structure for added stability Additional Details: Designed for 1,500m - 10,000m events