Birkenstock Ladies Slippers. SKU: 1026580-ECRU. Color: White. Birkenstock Birko-Flor Gizeh Slipper. The Gizeh Sandal, made in Germany, features a slip-on style with an adjustable buckle closure, an anatomically shaped cork-latex footbed, a suede lining, a regular fit, and a durable EVA sole. Outer: Birko-Flor 100%. Made in Germany. Please visit the brand website for sizing information.