Unit: Original BIRKENSTOCK soft footbed; anatomically shaped | Upper: Nubuck Soft 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 | Footbed Lining: Suede | SPECIAL FEATURE: SOFT FOOTBED The soft footbed has an integrated latex foam cushion. So it offers excellent comfort from day one. Outer sole: EVA sole for cushioning and shock absorption | Details: Thong, with an individually adjustable metal pin buckle. | Care: Avoid extreme heat, fully immersing in water and long exposure to direct sunlight or sea air. Wipe upper clean with a damp cloth or use soap and water for stubborn stains. The cork sole can be sealed with a Cork Sealant Balm to protect and keep cork from drying out. The inner suede sole can be brushed to remove dirt | 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.