Birkenstock 551253 Unisex Arizona Soft Footbed Birko-Flor Sandals, Black, 43 N EU/12-12.5 2A(N) US Women/10-10.5 2A(N) US Men Synthetic or metallic synthetic upper Synthetic lining Non-slip punched EVA sole Two adjustable straps with metal buckle closures Fit Tip: Regular widths fit best for Men; Narrow widths fit best for Women