Accelerate Faster: The full-length carbon fiber plate is angled higher than the Vaporfly 3, combined with a lower heel-to-toe drop for a dynamic racing feel Enhanced Energy Return: Nike ZoomX foam is lighter and more responsive, delivering increased energy return from heel to toe for a bouncy stride Reduced Weight, Consistent Fit: Engineered mesh upper reduces shoe weight while maintaining a consistent fit, with a smaller heel and tongue for further weight savings Streamlined Stability: Midsole bulges at the heel for reduced weight and increased stability, while a thinner outsole rubber reduces overall weight compared to the Vaporfly 3 The full-length carbon fiber Flyplate now has a steeper angle than its predecessor, the Vaporfly 3, and pairs with a reduced heel-to-toe drop, providing a dynamic, forward-moving sensation on race day. Our most responsive foam, Nike ZoomX, has been lightened, extending from heel to toe and delivering enhanced energy return with a slight midsole reduction, offering a buoyant, lightweight feel. Subtle adjustments have been made to shed unnecessary weight in the upper, midsole, and outsole, all without compromising performance.