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 full-length plate not only provides a snappy feel to your stride but helps keep stability from your landing to your toe off.