Unit: Anatomically shaped cork-latex footbed with Soft Footbed - Contoured cork footbed conforms to the shape of your foot and features pronounced arch support, a deep heel cup and roomy toe box | Upper: Natural leather | Inner Sole: Anatomically shaped cork-latex footbed with additional foam inserts | Outer Sole: EVA | Details: Two individually adjustable metal pin buckles. Neutral heel profile | 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 suede leather 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.