AfterPay Available - The Nike Zoom X Invincible Run Flyknit 2 offers the precise balance of comfort and supportive structure to your daily training. Carrying through the same responsive ZoomX foam cushioning as it's predecessor, now in a higher stack height to provide an even softer feel. Shaped like a rocker, the foam supports all three phases of a runner's stride, whilst providing flexibility when your foot rises off the ground, a smooth ride when your foot is moving forward, and cushioning at ground contact.