From Birkenstock, the Women's Gizeh Big Buckle Oiled Leather Thong Sandals feature: oiled leather upper features a soft, distressed leather that emphasizes a handcrafted natural look (variations may occur) Slip on design with adjustable buckle Oversized buckle detail Unlined Birkenstock's contoured cork footbed supports the arches of the feet and cradles the heel for all-day comfort EVA outsole Flat heel Imported. Styling Notes: Birkenstock footwear is made in European whole sizes. The style selected is a Birkenstock regular footbed that will fit most medium feet