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
A Ban On Nike Vaporfly And Other High Tech Shoes: A Major Mistake? | The National Interest
Eliud Kipchoge's footwear sparks debate as critics say the shoes give runners an 'unfair advantage' | Daily Mail Online