The Zoom Fly was developed as part of Nike's mission to help athletes break the two-hour marathon barrier. Now in its sixth iteration, this is the lightest version yet, built to support you through every mile. Responsive Zoom X foam, the label's most energy-returning cushioning, works alongside a carbon-fibre Flyplate to help propel you towards the finish line. Weight: 265g Heel-to-Toe Drop: 8mm Synthetic Leather Upper Lace Closure Zoom X Foam Carbon Fibre Flyplate Grippy Rubber Outsole Reflective Detailing Style Code: IW2352-200