Nike Vaporfly ban: why World Athletics had to act against the high-tech shoes
Ben Johnson on Instagram: "Nike Vaporfly 3 | Eliud Kipchoge 20 years ago @kipchogeeliud ran 12:52.79 for 5000m on the track and won his first World Championship. This shoe celebrates 20 years
Nike Vaporfly shoes are not banned but Eliud Kipchoge's are - BBC Sport