The Kisumu2 is a newer slimmer styled version of the original Kisumu. This sandal features three padded adjustable straps for a soft secure fit. MBT - The First Physiological Footwear Design Creating a Positive Effect on the Whole Body. The Sole of the MBT Features the Masai Sensor, Rocker Shaped Midsole, and Glass Fiber Shank. These Forces Work Together Creating a Natural Instability. The Body Automatically Reacts by Increasing Muscle Activity; Strengthening Foot, Leg and Back Muscles With Every Step.