The Men's Nike Alphafly 3 Running Shoe is a road shoe for racing. You've trained hard, put the work in, and the day has finally arrived. Constructed with two Air Zoom units and ZoomX foam, they're designed to store energy and return it to you so you can keep up the marathon pace. The ultralight cushion is super comfortable, and a full-length carbon fiber plate provides power to propel you from start to finish. Complete with an Atomknit upper for a foothugging experience that breathes.