EUC Women size 10-10.5 US or 41 Narrow LIMITED EDITION! The BIRKENSTOCK Siena boasts a refined appearance. Crossed straps give the sandal its unique and special look. The upper is made from high-quality nubuck leather. Anatomically shaped cork-latex footbed Width: Narrow - Birkenstock's Medium/Narrow fits most women comfortably, similar to most Regular widths from other brands. Upper: nubuck leather Footbed lining: microfiber Sole: EVA Details: two tone straps, one with an individually adjustable metal pin buckle; tonal footbed Made in Germany