Inspired by the Masai Tribe, MBTâ (Masai Barefoot Technology) footwear reestablishes natural conditions of standing and walking. Using a multi layered sole, MBTâ transforms flat, hard, artificial surfaces into natural, uneven ground. The unique uplifting lever spring action of the MBT® sole challenges core strengthening muscles to be more active. This reactive, more supportive muscle action creates good posture and increases shock absorption for all the joints, significantly reducing muscular-skeletal compression.