Birkenstock Arizona Vegan Sandals. An icon of timeless design and legendary comfort, the Arizona sandal has been defining style since 1973. This season, a textured synthetic upper and microfiber footbed lining gives it a vegan spin. Grounded in an original contoured footbed, it's so comfortable you'll never give it a second thought. Contoured cork-latex footbed creates custom support with wear. Synthetic upper. Microfiber footbed lining. Flexible EVA sole. Two straps with adjustable metal pin buckles. Imported.