The full-length carbon fiber plate now has a steeper angle compared to the Vaporfly 3, paired with a reduced heel-to-toe drop, offering a dynamic, forward-driving sensation on race day. Nike's ZoomX foam, our most responsive yet, has shed some weight. Stretching from heel to toe, it now returns even more energy with a slight midsole reduction, providing a lively, lightweight feel. We've made subtle adjustments, trimming unnecessary weight from the upper, midsole, and outsole, all without compromising performance.