Nike Men's Zoom Fly 4

Train hard and find your rhythm on the road. From the moment you lace up, the lacing system wraps around your foot for a secure feel from start to finish. The added flex feels highly responsive and secure with every step. A soft, breathable upper combines with a stretchy collar for a socklike fit for a secure, stable sensation.Propulsive Miles - Nike React technology is a lightweight, durable foam that delivers a smooth, responsive ride. It combines with an internal carbon fiber plate for flexibility in your stride. Snug Fit - Nike Flyknit material is placed around the collar, providing extra stretch for easy on and off. It has a socklike feel that helps contain your foot and feels secure. Cooler Comfort - The upper is made with lightweight mesh for a softer, more breathable feel that conforms to your foot. Secure Feel - Midfoot support arrives courtesy of 4 individual pieces of webbing that intertwine with the laces. When you lace up, the shoe gets tighter, giving you stability. Specs