Masai Barefoot Technology MBT research indicates their footwear: activates neglected musclesimproves posture and gaittones and shapes the bodycan help with back, hip, leg and foot problemscan help with joint, muscle, ligament and tendon injuriesreduces stress on knee and hip jointsRead customer reviews!MBT advises the M.Walk runs 1/2 size small, therefore you may want to order 1/2 size up from your normal size. For instance, if you wear a size 38 1/3 (US 8), choose a size 39 (US 8.5). womens mbt shoes