From Birkenstock, the Women's Madrid Big Buckle Raffia Slide Sandals feature: Synthetic raffia upper Slip on design with adjustable buckle for a custom fit Classic contoured cork footbed supports the arches of the foot Deep heel cup for all day comfort Leather lining EVA outsole Flat heel Birkenstock footwear is made in European whole sizes. The style selected is a Birkenstock narrow footbed that will fit most medium feet. Imported.