Unit: Anatomically shaped cork-latex footbed | Upper: Oiled nubuck leather upper | Inner Sole: Suede lining with foam inserts for extra comfort | Outer Sole: EVA | Details: one strap with one individually adjustable metal pin buckle | Care: Avoid extreme heat and fully immersing in water. Brush the surface with the Birkenstock Care brush to remove dirt. The cork sole can be sealed with a Cork Sealant Balm to protect and keep cork from drying out. The oiled leather upper can be treated with a leather balm | Warranty: Guaranteed against faulty workmanship or defective materials for 6 months from date of purchase. Does not cover normal wear and tear and negligence or misuse of the product. Please note care instructions | Made in Germany.