Birkenstock Arizona Essentials EVA Sandals. Birkenstock's best-selling sandal in an ultra-lightweight style. The Arizona EVA sandal is made from water-friendly material, giving you a flexible design built on the contoured footbed you love most. The perfect throw-and-go style for everything from the pool to post-workout. Contoured footbed for legendary Birkenstock support. Made from single piece of EVA. Water-friendly, lightweight & flexible. Two adjustable straps with pin buckles. Imported.