The Birkenstock Gizeh is perfect for day or evening. Easy care Birko-Flor upper in a classic thong silhouette with an adjustable buckle for the perfect fit. Upper is made of acrylic and polyamide felt fibers with a leather-like texture on top and a soft fabric underneath against the skin. Features anatomically correct cork footbed that is 100% renewable and sustainable, and encourages foot health. The suede lined, contoured footbed will mold to the shape of your foot creating a custom footbed that supports and cradles you each every step.