![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%. 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%.](https://pbs.twimg.com/media/EQCN-5NU0AAOla5.jpg)
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
![Technological doping: The science of why Nike Alphaflys were banned from the Tokyo Olympics | BBC Science Focus Magazine Technological doping: The science of why Nike Alphaflys were banned from the Tokyo Olympics | BBC Science Focus Magazine](https://images.immediate.co.uk/production/volatile/sites/4/2021/08/Alamy_2F3Y8J0-crop-ff47efc.jpg?resize=960,413?quality=90&resize=940,400)