The Shoe That Could Make a Sub-Two-Hour Marathon Possible | WIRED

Fulfill the Nike Zoom Vaporfly 4%. It's the footwear Nike insurance claims can make any type of runner 4% a lot more efficient. The company is attempting to verify this by trying to break the last obstacle in running: a sub-two-hour marathon.

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The Shoe That Could Make a Sub-Two-Hour Marathon Possible|WIRED.