Our midsole is made of a special formula of the finest polyurethane (PU) imported from Germany. It is incredibly soft, flexible, and durable. Unlike midsoles made of different materials (e.g. EVA), Klas & Sylph’s PU-based Burlin Sole is much more resilient, as it reverts to its original form despite being constantly compressed by the body mass for a long period of time. This provides both exceptional comfort and ongoing stability in every single step that you take.
