Eliud Kipchoge's NIKE ZOOMX ALPHAFLY NEXT% || THE Marathon WORLD RECORD Controversy - YouTube
The Science Behind Nike's New ZoomX Vaporfly Next% Marathon Shoe | WIRED
By Wearing Vaporfly Prototypes, Eliud Kipchoge, Galen Rupp, & Shalane Flanagan Are All Guilty of Mechanical Doping in 2016 - Will Anything Be Done About It? - LetsRun.com
Nike Vaporfly Shoes Helped Eliud Kipchoge Run a Marathon in Under 2 Hours. Should They Be Banned? | Inc.com
Nike Vaporfly shoes are not banned but Eliud Kipchoge's are - BBC Sport