ALMOST new, very gently worn! Birkenstock Description: Simple yet sophisticated! The BIRKENSTOCK Montana features absolutely no stitching thanks to its special construction. The two upper sections are held together by two rivets and the novel lacing. The upper is made from extra thick, oiled nubuck leather with an open-selvage finish. Anatomically shaped footbed Upper: oiled nubuck leather Footbed lining: suede Sole: PU Details: stitch-free construction “Made in Portugal” Materials: Oiled leather is one of our favourite types of leather. Its oily waxed surface makes for a unique colour effect and develops a beautiful patina. The oily finish of our natural leather products results in colour variation, making each and every pair unique. Natural leather can be recognized by its untreated surface. BIRKENSTOCK purposely does not treat surface grains and other characteristic features. BIRKENSTOCK uses sturdy leather with a thickness of 2.8 to 3.2 millimeters as upper material. Cork is a sustainable material extracted from the bark layer of the cork oak. This natural product is insulating and offers very good cushioning.