Birkenstock Arizona Sandals Slides Disco Ball Silver Metallic Rainbow Hologram Girls EU 32/US 1-1.5. Birkenstock delivers comfort and style with the Arizona flat sandals. A kids version of the grown-up pair, these slip-on sandals complete the Mini Me look for the whole family to match. This pair features an Original Birkenstock footbed with pronounced arch support and a deep heel cup. Great condition.