Stay race-ready anywhere, anytime in the Nike ZoomX Streakfly. Its low and nimble design includes the familiar ZoomX midsole to keep you light on your feet with responsive cushioning. The foam stack heights are lower than the popular Vaporfly to keep it light as a feather. While the ultra-thin knit upper keeps your feet ventilated, the premium outsole helps you get into your stride with tech-driven support. Nike ZoomX Streakfly features: The updated sleek lacing system is laterally offset with a notched tongue to help relieve pressure on the top of the foot. The extra reinforcement in the forefoot keeps you secure. The partially integrated tongue delivers a secure fit. The runner-informed data used to create the outsole delivers traction when you need it the most.