The MBT Bosi is a version of the ever-popular line of men's dress shoes with classic Oxford styling with Bicycle stitching. Shoe has a soft calf leather upper finished with a removable cow lined insole. XS-trek Outsoles are slip resistant and non-markings. NWT SZ11-11.5 MBT states: shoes produces what has been described as a pleasant and natural feeling The Pivot Axis promotes a rolling movement, which in turn may help increase lower limb muscle activation in your every step.