The Nike Zoom Fly 6 combines Flyknit material with React foam technology, ideal for runners seeking lightweight responsiveness. The FN8454-104 delivers a smooth stride with enhanced energy return. Key Features: - Flyknit Material: Provides superior elasticity and easy on/off wear. - React Foam: Lightweight and durable cushioning for long-lasting comfort. - Carbon Fiber Plate: Offers flexible support for a natural running motion. - Responsive Design: Engineered for smooth transitions during runs.