Tone your body as you walk these sandals have an amazing hidden difference that could dramatically improve your posture and fitness unlike most shoes which are slightly higher at the heel body toning sandals are 9 higher at the toe end as a result your standing weight is redistributed making your spinal column correctly aligned at all times and you constantly exercise the backs of your calves and thighsmini massage nodules on the footbed stimulate healthy circulationlightweight eva sole