The Nike Zoom Vaporfly Next 3% Prototype combines cutting-edge technology with elite performance design, ideal for marathon runners seeking speed and comfort. The FD8356-100 model delivers unparalleled energy return and cushioning for long-distance races. **Key Features**: - Dual Air Zoom units for responsive cushioning and impact absorption. - Full-length ZoomX foam midsole extends from heel to toe for maximum energy return. - Lightweight construction enhances speed and reduces fatigue during marathons. - Engineered for elite athletes and super marathon runners seeking competitive edge.