The Alphafly 3 road racing shoes feature a double dose of Air Zoom units and ZoomX foam. A full-length carbon fiber plate delivers a propulsive sensation. The fully connected ZoomX foam creates a cushioned ride. The Atomknit upper is designed for improved multidirectional containment and breathability. These sneakers also feature notched lace up closures and an integrated knit tongue with lofted padding to alleviate lace pressure. The heel-to-toe drop is 8mm. The approximate weight is 174g/6.1oz. These are athletic sneakers by Nike.