Upper Nubuck leather Nubuck leather is full grain leather with a buffed surface, which gives the leather a particularly soft & velvety feel. Neoprene Neoprene Lining Microfibre Microfiber is a soft material & has good moistureconducting properties. Midsole Dual Board Shank This construction uses new technology which allows new MBT designs. Shank & lasting board form one single piece, which is attached directly to the bottom unit. Outsole Swing SS11