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“And the very first super shoe was was called the Nike…” — The Vergecast at 8:11

The Vergecast The tech that made a 2-hour marathon possible

“And the very first super shoe was was called the Nike VaporFly 4%. And it was called the 4% because Nike arranged for external testing at the University of Colorado and they found that pretty reliably on average, people were 4% more efficient.”

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