Some of the very first rocker bottom shoes created, these are the original, first famous M.B.T. shoes designed and created by Karl Mueller. M.B.T. stands for Masai Barefoot Technology, based on the Masai tribe that walks barefoot on unlevel ground. M.B.T. designs its shoes for “The Human Movement” and is the perfect athletic-styled walking shoe for everyday activities as well as serious exercise. The unique curved, multi-layered sole emulates the feeling of walking on sand while it promotes the gentle rolling motion experienced while wearing this shoe. These shoes are known for helping to relieve pressure on your joints, ankles, knees, and back.