Men's Birkenstock Uji Nubuck-trimmed Suede Sandals - Brown - Leather sandals Birkenstock's 'uji' sandals are just as comfortable and easy to style as its cult 'arizona' style. They're made from suede that will soften over time and trimmed with smooth nubuck straps. Velcroâ fastenings in place of the familiar buckles mean you can get the fit exactly right.