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