Birkenstock Siena Big Buckle Suede Leather Sandals / Black Metallic Features Premium black metallic suede leather upper Crossover strap design with oversized metal pin buckle Contoured cork-latex footbed molds to foot shape Smooth leather lining Lightweight EVA sole for flexibility and shock absorption Women's Size 10 (Euro 41) Birkenstock Narrow width = regular women's width. Excellent condition, very minor signs of wear Style tags Birkenstock boho bohemian granola girl minimalist coastal grandmother quiet luxury old money summer spring resort wear sandal flat comfort shoe hippie chic normcore gorpcore