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Nike's controversial Vaporfly shoes are helping runners set new records, but some think it's 'technology doping.' Here's how they work. | Business Insider India
Nike Vaporfly shoes are not banned but Eliud Kipchoge's are - BBC Sport
Nike Vaporfly gives new meaning to going the distance
Nike Vaporfly shoe controversy sparks World Athletics to introduce new rules ahead of Tokyo 2020 Olympics - ABC News
Nike's Vaporfly running shoes get clearance for Olympics