Adidas 'Ultra Boost' sneakers: a marathoner's dream? — mashable.com

When Adidas came out with what it called the world's most high-tech sneaker two years ago, it was unclear if the embedded "energy boosters" — basically bits of bouncy styrofoam — into the sole was just a gimmick, or could actually improve a runner's performance. Since the debut, the company claims, more than 20 people have won marathons while wearing the Boost shoe — including three out of the five top race times in the history of marathons.

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