Friday, May 05, 2017

Running shoe for under 2 hours

Repost with a bit more of context.  Thick sole
Nike Zoom Vaporfly 4%—the fastest marathon shoe Nike has ever sold. In lab tests, the shoe measured 4% better for running economy than Nike's latest and fastest marathon racer 

To break the two-hour marathon barrier, a runner would need to beat the fastest marathon that's ever been clocked — 2:02:57 — by about 3 percent. That means he'd need to shave seven seconds off each of the race's 26.2 miles. To most, it's a seemingly impossible challenge. 

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