Nike’s version: https://media.wired.co.uk/photos/606d9e525113453af5734514/master/w_1600,c_limit/aaaasu19_rn_zoom_next_angle5_rectangle_1600.jpg https://media.wi

Nike’s version: https://media.wired.co.uk/photos/606d9e525113453af5734514/master/w_1600,c_limit/aaaasu19_rn_zoom_next_angle5_rectangle_1600.jpg https://media.wired.co.uk/photos/606d9e525113453af5734514/ma... If you Google Alphafly, Vaporfly, and Kipchoge, you’ll get all sorts of analysis on this type of shoe.