Metabolic and performance responses of male runners wearing 3 types of footwear: Nike Vaporfly 4%, Saucony Endorphin racing flats, and their own shoes - ScienceDirect
Can The Nike Zoom Vaporfly Really Make You Faster?
Nike Zoom Vaporfly 4% | Running Shoes Guru
Nike's Vaporfly 4% data sheds light on how the shoe works - Canadian Running Magazine