birkenstock women's arizona mocha birkibuc birkenstock classic two-strap sandal with fully adjustable straps. the go-to style in any situation.|birkibuc upper is acrylic and polyamide felt fibers with the textured look and feel of velvety nubuck|footbed featuring pronounced arch support, deep heel cup, and roomy toe box|footbed molds and shapes to your foot|flexible, lightweight, durable and shock absorbing eva outsole