国立アメリカ歴史博物館のインスタグラム(amhistorymuseum) - 4月19日 08時38分

A real waffle iron was destroyed in making the first experimental pair of waffle trainers.
In 1972, Bill Bowerman applied for a patent on an athletic shoe with a sole that had "short multi-sided polygon shaped studs. . . which provide gripping edges that give greatly improved traction." The sole's design was inspired by his household waffle iron, which Bill ruined while using it to form his experimental rubber soles.
Bowerman received his shoe patent in 1974 and Nike began producing the "waffle" trainers the same year.

Have a pair like this? ???? #BostonMarathon #Sneakers #RunningShoes #Innovation #Invention #Runspiration #RunNerd #Instarunners #IGrunners

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