Darren Rovell on Twitter: "Shoe Eliud Kipchoge wore to break two hours is an unreleased new version of the Nike ZoomX Vaporfly NEXT%. https://t.co/ma8M3UHPNG" / Twitter
The Data Behind Nike's “4%” Shoe | Runner's World
Breaking2. Nike GB
The Epic Untold Story of Nike's Two Hour Marathon Attempt | WIRED
Why Nike's #Breaking2 Marathon Attempt Wasn't About Selling a Sneaker | GQ
You Can Buy Nike's Breaking2 Shoe But It's Not Cheap - Sneaker Freaker
Is Nike's sub-two-hour marathon attempt a leap into the future? | CNN