03/28/2008 02:44 am ET Updated Nov 17, 2011

Fitness From A Flip-Flop

[Marcia] Kilgore created Fitflops in response to her own needs. "I never have the time to go to the gym," she says, "so I thought, wouldn't it be great if you could get an MBT sort of flip-flop that you could wear in the summer, that exercises your legs while you walk to the office?" Kilgore refers, of course, to the monumentally ugly (though some say equally effective) Masai Barefoot Technology training shoe, developed by Swiss Engineer Karl Muller.

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