The Zoom Fly 6 is with you every step of your run. Lighter than the Zoom Fly 5, its responsive ZoomX foam adds energy return to each stride, while a carbon fiber plate helps propel you to the finish line. Keep Growing - Whenever someone trains with Eliud Kipchoge, they're asked to plant a tree at his base camp to signify their growth. The sockliner graphics mimic that growth with branches moving forward towards the front of the shoe. The red clay color fade nods to the Kenyan dirt that stains the shoes when training. The font is a play on African trees that have fractal-like patterns on the surfaces. More Benefits - ZoomX foam, Nike's lightest and most responsive foam, delivers our most energy return with every stride you take. Full-length carbon fiber plate increases efficiency and responsiveness. Thin rubber outsole is lightweight and grippy on the road. Product Details - Weight - Approx. 265 g/9.3 oz (Men's US 10). Heel-to-toe drop - 8 mm. Synthetic leather on upper. Not intended for use as Personal Protective Equipment (PPE).