Designed for marathon performance, the Alphafly 3 incorporates three distinct technologies. Dual Air Zoom units assist with energy return, while a full-length carbon fiber plate provides a propulsive sensation. A Zoom X foam midsole offers cushioning throughout the run. 2 forefoot air zoom units full-length carbon fiber plate zoomx foam midsole atomknit upper notched laces integrated knit tongue with lofted padding