The full-length carbon fiber plate now has a steeper angle, paired with a lower heel-to-toe drop, offering a dynamic racing feel. Nike's ZoomX foam, our most responsive, has been lightened. It now delivers even more energy return, from heel to toe, with a slight midsole reduction, providing a bouncy, lightweight sensation. Engineered mesh reduces shoe weight while maintaining a consistent fit. We've also trimmed the heel and tongue to save more weight. The midsole's heel bulge reduces inner foot weight, enhancing stability. The outsole's rubber has been made thinner, reducing weight compared to the Vaporfly 3.