Gizeh Soft Footbed Thong Sandals By Birkenstock. Featurin Thong With An Individually Adjustable Metal Pin Buckle Side Buckle Fastening Suede Lining Cork Insole Rubber SoleComposition: Upper, 100% nubuck leather Footbed Lining, 100% suede Footbed material 100&% cork Sole, 100% EVA