Birkenstock Mayari Thong Sandals Stone/Mocha Sz 39 (EU) 8.5/9 (US) Birkenstock Mayari Condition: preowned pls see pictures If between sizes, order next size up. Unisex: Built on a unisex shoe construction. Crisscross straps in velvety suede bring cozy comfort to a supersoft slide sandal built on a contoured footbed with excellent support. The cork-and-latex footbed absorbs shock and mimics the shape of a healthy foot, while pronounced medial and metatarsal arches support the instep and ball of your foot. Contoured footbed with arch support Leather upper and lining/synthetic sole Imported 100% Guaranteed Authentic