Birkenstock Super-Birki Shearling 41 black clogs with fur lined Polyurethane Excellent gently preowned condition with no visible signs of wear and tear Minimal wear The Super Birki is an incredibly versatile shoe, perfect for everyday wear. This shoe is a fun splash friendly clog, featuring a shearling lining for extra warmth. The upper is made of polyurethane (PU), it is flexible, and water- and dirt-repellent for easy care. Anatomically shaped footbed Upper: polyurethane (PU) Footbed lining: shearling Sole: polyurethane (PU) Details: flexible, water- and dirt-repellent “Made in Germany”