Nike's Vaporfly Tests the Boundaries of the Running Shoe - Bloomberg
IAAF steps up investigation into fears over springs in Nike running shoes | Athletics | The Guardian
Do Nike have a patent on these stud like spikes or can you get them separately? Would they work well on the Dragonfly? (for XC obviously) : r/RunningShoeGeeks
D Young & Co | The “patented” Nike Vaporfly - a step too far?
Nike's Innovative New Running Shoes Won't Be Banned: Here's Why