Birkenstock - Arizona Big Buckle - Basalt Gray LeatherThe Birkenstock Arizona is a genuine classic that has been delighting both men and women with its timeless design for decades. The Big Buckle version features a large, elegant pin buckle a fantastic, striking eye catcher on this otherwise understated sandal. The lining of the semi exquisite footbed is covered with soft smooth leather and matches the shoe in color. The upper is made from extra thick, oiled nubuck leather with an open selvage finish.