Nike engineered this racing shoe to be lighter and more propulsive from the mile to the marathon. The Vaporfly 4 features a full-length carbon fiber Flyplate for a fast feel and optimal performance.Material & CareSize & FitWhen every second matters, the Nike ZoomX Vaporfly Next% 4 is built to help you run fast from the mile to the marathon. This race-day silhouette pairs an ultra-light feel with a propulsive ride, giving you the responsive cushioning and forward-driving sensation you want when the pace picks up. Cushioning & Road Feel Lightweight cushioning and a speed-focused plate geometry work together to create a smooth, efficient transition underfoot. A 6 mm heel-to-toe drop and grippy outsole help keep the ride quick, controlled, and ready for hard efforts on the road.