Nike Superfly Elite 2 is a State-of-the-art track shoe Designed for Explosive speed on Distances from 100 to 400 Meters. With an Ultra-light Design and Advanced Materials, it is built to Maximize your Acceleration and Performance when every Hundredth of a Second Counts. The upper is made from a Breathable and Streamlined Atomknit Material that molds to the foot, Providing a snug, Sock-like fit Without Compromising on Ventilation. The plate under the foot is a stiff Pebax plate, Delivering an Aggressive Push-off, while the eight Removable Spikes and Non-slip zones Ensure Maximum grip on the track.