Design: Engineered mesh on the upper enhances breathability and comfort, conforming fit gives you a disappearing sensation that is built to go the distance A slightly wider midfoot and forefoot compared to the previous iteration improve the feeling of stability on straightaways and especially around the turns In-Shoe Comfort: Full-length ZoomX foam, Nike's lightest and most resilient foam, provides energy return with each step Durability & Traction: Carbon fiber on the midsole unlocks plate response and helps reduce weight Four permanent spikes help reduce the weight of the plate and creates a wide, flat platform for a stable connection to the track The curved design gives you a propulsive feel Additional Details: Designed for Long-distance events