Birkenstock Gizeh Big Buckle Cognac/Gold Size 39 EUC - worn once This sandal pairs a buckled strap with a legendary footbed that mimics the shape of the foot with excellent support. The cork and latex footbed absorbs shock and mimics the shape of a healthy foot, while pronounced medial and metatarsal arches support the instep and ball of your foot. Flat sole Adjustable strap with buckle closure Cushioned footbed with arch support Leather upper and lining/synthetic sole