View the size chart Birkenstock® Size and Width Chart Please be advised that the Birkenstock® Narrow width can accommodate both traditional narrow and medium widths. Go for a classic silhouette with a ready-for-anything attitude with the Birkenstock® Arizona EVA sandal. Durable and waterproof EVA uppers with an open toe. Two top straps with adjustable buckle closures. Anatomically shaped EVA footbed. Ultra-lightweight and shock-absorbing, one-piece EVA outsole. Washable. Made in Germany. Product measurements were taken using size 38 (US Men's 5-5.5, US Women's 7-7.5), width Narrow. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair. Measurements: Weight: 8 oz View Zappos.com Glossary of Terms Find something wrong in this description? Help us fix it!