Heidi Burgett on Twitter: "Nike unveils the Nike Air Zoom Mercurial (w/ Flyprint upper), Nike Air Zoom BB NXT (available July 1), Nike Air Zoom Viperfly, and Nike Air Zoom Alphafly NEXT%.
![Do these actually exist? Nike never updated a release date so I'm just wondering if anyone else knew anything : r/trackandfield Do these actually exist? Nike never updated a release date so I'm just wondering if anyone else knew anything : r/trackandfield](https://preview.redd.it/nz3qijxo63y51.jpg?auto=webp&s=f86ca6a63b6545461ed084be9b99fc1bafeee2f3)
Do these actually exist? Nike never updated a release date so I'm just wondering if anyone else knew anything : r/trackandfield
![It's Official: Nike's Vaporfly Shoe Technology and World Athletics' Shoe Rules Have Ruined The Marathon (At Least Temporarily) - LetsRun.com It's Official: Nike's Vaporfly Shoe Technology and World Athletics' Shoe Rules Have Ruined The Marathon (At Least Temporarily) - LetsRun.com](https://www.letsrun.com/wp-content/uploads/2020/03/60455122771__7FA1244E-F4C3-4DCA-A04C-52B5E958E997.jpeg)