Birkenstock Madrid Big Buckle Regular Fit pairs the brand's contoured cork footbed with a single adjustable strap and signature oversized buckle. Product image is indicative. Key attributes: Black | Black Patent | Shock-absorbing cork footbed | Lightweight construction | Adjustable strap with XL buckle | Contoured cork-latex footbed | One-strap sandal | Oversized decorative buckle | Minimalist silhouette | Dimensions & fit: Regular Fit | Composition & care: Upper: Patent | Footbed: Cork-latex with suede lining | Outsole: EVA | Buckle: Metal | Wipe uppers with a damp cloth; do not submerge in water. Avoid excessive heat and direct sunlight. Air footbed regularly.