The Nike Zoom Fly 6 combines Flyknit material with React foam technology, ideal for runners seeking lightweight responsiveness. The FN8454-102 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-distance comfort. - Carbon fiber plate: Offers flexible support and propulsive energy return. - Dynamic fit: Designed for natural movement and stability during runs.