The Nike Zoom AlphaFly Next 3% Prototype Marathon Running Shoes combine cutting-edge technology with elite performance design, ideal for professional marathon runners seeking speed and energy return. The FD8315-012 model delivers unparalleled cushioning and responsiveness for long-distance races.
**Key Features**
- Dual Air Zoom units: Provides targeted cushioning and explosive energy return during toe-off.
- Full-length ZoomX foam: Extends from heel to toe for lightweight, ultra-responsive cushioning throughout the stride.
- Prototype racing design: Engineered for elite marathon performance with a focus on energy efficiency.
- Lightweight upper: Ensures breathability and a secure fit during high-speed running.
Size Charts
