MBT shoes are shoes that have a positive physiological effect on the whole body. I know..that sounds kind of weird, right? Seriously though, think for a moment about the effect the foot has on the whole body. Posture, especially. The spine is everything and the feet, walking, etc play an important role in the use of our spine. MBT shoes improve gait, and posture..and not to mention, are just super cool shoes. I found a pair of Mary-Janes that I really like.