Outfitter's Note: this is a UNISEX-sized shoe. Men's sizes are shown — women should order 1.5 sizes below their standard running shoe size. For example: for a women's size 9.5 shoe, order a size 8. The Nike Alphafly 3 EK propels you forward into the next level of marathon speed. The color design honors Eliud Kipchoge's tradition of having training partners plant trees at his camp. The sockliner mimics the growth of those branches while the midsole’s red clay color represents the Kenyan dirt that stains the shoes when training. Nike packed three innovative technologies into the latest Alphafly: A pair of Air Zoom units to launch you forward A full-length carbon-fiber plate for a more propulsive ride A heel-to-toe ZoomX midsole to make every step feel fresh With its cutting-edge tech and bold style, the Alphafly 3 makes your runs more powerful and lighter than ever before. Details: Upper: The Atomknit upper offers containment and breathability that provides a comfortable fit. Midsole: A full-length carbon fiber plate helps push you forward effortlessly, while heel-to-toe ZoomX foam keeps you feeling fresh from start to finish. Outsole: Its electric outsole gives you better durability and traction on any run.