Nike's Vaporfly Tests the Boundaries of the Running Shoe - Bloomberg
Nike Vaporfly 4%: Innovation… Or Tech Doping?
World Athletics gives seal of approval for controversial Nike Vaporfly shoes | Athletics | The Guardian
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
Mechanical Doping For Sports Performance | RAW with Marty Gallagher
Nike Vaporfly escape Tokyo 2020 ban but what can runners learn from cycling and swimming about 'technological doping'? | South China Morning Post
Nike's Vaporflys are like 'doping,' critics say
Shoe doping: World Athletics is not enforcing the rules that they publish
Technological doping: The science of why Nike Alphaflys were banned from the Tokyo Olympics | BBC Science Focus Magazine
How Nike's Vaporfly Redefined Running, For Better or Worse | Digital Trends
Nike Vaporfly Shoes Won't Be Banned From Olympics - WSJ