Birkenstock Arizona Shearling is a cozy and comfortable sandal. A genuine shearling lined footbed contours to feet, while the EVA outsole absorbs shock. The anatomically shaped cork and latex footbed offers stability, while two adjustable buckle straps secure feet for a supportive fit. Suede Upper. Genuine Shearling Lined Footbed. Adjustable Buckle Straps. Shock-Absorbing EVA Outsole.