Design: Mesh upper provides excellent comfort and breathability DYNAWRAP™ technology enables better midfoot stability by keeping the foot centered on the shoe's platform Durability & Traction: Nylon outsole plate with four metal spikes has added traction in the outsole to improve grip, eliminating the need for a traditional spike (pin) configuration Additional Details: Ideal for 100m – 400m events Comes with ¼” pyramid spikes and wrench