The modern thong sandal from Birkenstock. The Gizeh is an iconic classic with signature support and a refined, minimalist style Birko-Flor is a durable, synthetic upper material with leather-like finish and soft backing. Contoured cork footbed conforms to the shape of your foot and features pronounced arch support, a deep heel cup, and roomy toe box; lined with suede Navy Birkenstock sandals with a classic design. Features a comfortable brown footbed. New in box Size 36 which is a 5 or 5.5 Blue