The MBT Kabisa 5S is the newest version of the ever popular line of men's dress shoes with classic oxford styling and MBT's patented rocker sole.MBT Kabisa 5S Black Leather Men's ShoeFeatures include: Nappa leather upper with tie closure Full grain leather lining allows moisture to wick and helps keep your feet cool and dry Dual density midsole is made with TPU and nylon mixed with glass fibers for extra firmness and durability Multi-layered sole creates natural instability to emulate the feeling of walking on sand Dressy rubber outsole Removable insoles so that you can add your own orthotic insoles This MBT style features removable insoles so that you can add your own orthotic insoles. Although to fully benefit from the MBT technology the MBT shoes should be worn without orthotics. If you have any questions you can find the answers in our MBT Shoes Frequently Asked Questions section. Wearing MBT Shoes for the first time? Watch the MBT Shoes Instructional Video The MBT Index simplifies the process of finding the right level of MBT shoe for your needs. It ranks MBT into one of three categories, starting at Activate, our least level of rock, and progressing through Dynamic and ending with our highest level of rock, Performance.