MBT advises the MBT runs 1 size small, therefore you may want to order 1 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).

What is MBT?
Masai Barefoot Technology or MBT is not just a shoe in the ordinary sense ?it is a revolutionary fitness aid from SwissMasai. 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, combined with correct training, achieves a more active and healthy posture and walk.