Birkenstock Madrid sandals in Spectral Silver, size EU 42/UK 8/US L 11/M 9.0/MM 270 Narrow. Featuring a solid pattern with a buckle closure, flat heel style, and leather upper material. Suitable for travel, activewear, and casual occasions, with a bohemian outdoor metal theme. Ideal for all seasons, including winter, summer, fall, and spring. The model is Birkenstock Madrid from the product line of Birkenstock.