BIRKENSTOCK. 1015648. ARIZONA KIDS BIRKO-FLOR. DESERT SOIL VIBRANT BLUE. The BIRKENSTOCK Arizona is a genuine classic that has been delighting wearers with its timeless design for decades. The two-strap model fits kids feet perfectly -- even during boisterous play. The upper is made from the skin-friendly hard-wearing synthetic material Birko-Flor. Here the sophisticated interplay of contrasts gives the classic model a new look which could almost be mistaken for real leather. The color-coordinated outsole the footbed and the buckles round off the shoe s look of sophistication.