Multifunctional and resource efficientthe Bluestrait Mid ES is a higher-cut winter boot for active everyday winter use. With a waterproof, breathable and PFC-free HANWAG EcoShell membrane, insulating merino wool footbed and robust Perwanger leather upper. The Bluestrait Mid ES is a secure winter boot with a non-slip grip. Fibreglass-reinforced grip inserts embedded in the Fiberbrake outsole ensure that its load bearing zones provide a unique level of traction. The specially-developed winter rubber compound stays, soft, pliable and grippy in sub-zero temperatures. In addition, the aggressive tread pattern on the outer edges of the soles give excellent traction through loose snow or slush. And the 3D IPU midsole construction guarantees a perfect fit and allows the foot to roll effectively for a smooth roll off. Its three-dimensional structure is made of stabilising 3D injected polyurethane (IPU) and expanded polyurethane (PU). The raised edge of the sole offers greater support on all