From Birkenstock, the Women's Catalina Luxe Buckle Patent Slide Sandals feature: Patent synthetic upper Slip on design Fully adjustable luxe buckle for a custom fit Classic contoured cork footbed supports the arches of the foot Deep heel cup for all day comfort 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.