NOTE: This Shoe Runs ½ Size Small. Order a ½ Size Larger Than Normal. MBT's are not just a shoe in the ordinary sense. This product will not only change the way you use your muscles, but will improve the use of your joints and spine. The uniquely designed sole achieves a more active and healthy posture and walk. With each step we take, pressure acts on the foot. MBT's distribute this load evenly, which prevents ailments that can be caused by the concentration of pressure on individual points. Masai Barefoot Technology in Everyday Use: Train muscles, burn calories, protect joints ... while you're doing something else. Shopping, in the office, at home. MBT's act as training equipment, every step of the way. The more you wear MBT's the more your body will feel the benefits. Masai Barefoot Technology is used in Sports: Many professional athletes rely on MBT's for regeneration, prevention and accelerated healing of injuries and in endurance and coordination training.