Controversial Nike ZoomX Vaporfly to Be Permitted at Tokyo Olympics

Following a length investigation, World Athletics -- the governing body for global track and field events also known as IAAF -- ended January with its official ruling on Nike's controversial ZoomX Vaporfly sneaker. Criticized for perceived performance enhancement, the shoe will be allowed at the 2020 Tokyo Olympics.Nike's current-generation Vaporfly sneakers were introduced in 2019 after the sports giant's elite runners spent months testing footwear technology. However, two of those runners -- K...