With Nikes fastest foam, and a fulllength carbon plate working together through the midsole, the Nike Zoom Fly 6 offers serious speed that takes you from daily training all the way to the podium. The Nike Zoom Fly 6 is lighter than its predecessor for a fresh, fast feel, and uses a woven mesh upper so you get a premium training shoes feel that lightweight and highly breathable.A thin rubber outsole helps keep the weight to a minimum while offering excellent grip.A huge stack of ZoomX foam cushions and helps with energy return, while the fulllength plate not only provides a snappy feel to your stride but helps keep stability from your landing to your toe off. The midsole is made of ZoomX, Nikes lightest and most resilient foam, delivering our most energy return with every stride you take A fulllength carbon plate increases efficiency and responsiveness The outsole is made of thin rubber thats lightweight and grippy on the road The upper is made of woven mesh, offering highend training shoe comfort without sacrificing weight or breathability.