The modern regular metallic thong sandals from Birkenstock are made in Germany. The Gizeh is an addictive classic with signature support and a refined, minimalist style. The pair is made of durable (No Suggestions), 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 flat heel cup, and roomy toe box, lined with suede. It has lightweight EVA sole for cushioning and shock absorption. Extreme heat should be avoided.