Birkenstock Women's Gizeh Birko-Flor SandalSize Chart The modern thong sandal from Birkenstock. A part of our Birkenstock Core Shoe Collection, the Gizeh is an iconic classic with signature support and a refined, minimalist style. Shown in Birko Flor. Made in Germany Birko Flor 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