London, UK. 17 May 2021. "Nike Air Zoom Alphafly NEXT%", 2020, and "Nike ZoomX Vaporfly NEXT%", 2019. Eliud Kipchoge wore prototype Alphafly to run a marathon distance in under two hours. Preview
London Marathon 2019: I lost sight in one eye, says elite runner Hayley Carruthers | The Independent | The Independent
This was the most popular running shoe at the 2019 London Marathon