Design: This special design is inspired by The Armory in New York, where track-and-field athletes of all abilities are welcome to step into the blocks Engineered mesh on the upper enhances breathability and comfort, conforming fit gives you a disappearing sensation that is built to go the distance 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 and more responsive than the previous version while adding durability Two spikes were removed from the original in favor of a four-spike design Supportive base creates a wider flat area on bottom of the plate compared to the original Victory Elevated the big-toe side platform to help the spikes feel more stable on the straightaways and especially around the turns The curved design gives you a propulsive feel Additional Details: Designed for Long-distance events