Birkenstock Gizeh Big Buckle High Shine Sandal Size 39 Regular Fit / Women's US 8 Color: Mud Green New without box. A modern thong sandal from BIRKENSTOCK with amplified buckle accent—the Gizeh Big Buckle. The semi-exquisite footbed is fully lined with soft piumato leather, making it exceptionally comfortable. The upper is made from high-quality natural leather with a shiny patent coating. Anatomically shaped cork-latex footbed; semi-exquisite Upper: natural leather with patent coating