Created in the UK, over a two-year collaboration between former Bliss spa-entrepreneur Marcia Kilgore, Biomechanist Dr. David Cook and a team of untiring footwear engineers, FitFlops were initially designed to help modern women squeeze a little more exercise into their increasingly hectic schedules."I thought, how amazing if I could invent something that would help fight the onset of cellulite while I'm walking to the office," says Kilgore. "I work. I have kids. I have a husband. And the likelihood of me seeing the inside of a gym in the next ten years is slim to none. That said, I'd obviously prefer to go with slim." Kilgore found Dr. Cook at The Centre for Human Performance at London's LSBU, where he envisioned injecting the patent-pending 'microwobbleboard' technology into the midsole of the function-forward flip flop. Slightly destabilizing, FitFlops feature three distinct densities of EVA foam in a single-fused underfoot piece, to challenge your muscles more every time you step - to deliver a workout while you walk.