Birkenstock Arizona EVA Twin Adjustable EVA Straps Across Vamp Birkenstock Branding Embossed On Strap EVA Shock Absorbing Sole Anatomical Arch Support Arizona, a classic sandal from Birkenstock. The slip on features twin adjustable EVA straps across the vamp, EVA outsole, and Birkenstock embossed buckles. The sandal has been finished off with the Birkenstock branding on the foot bed.