Birkenstock Arizona EVA Purple Fog Lightweight take on the classic The perfect summer sandal is waiting for you! Modeled after Birkenstock's signature Arizona sandal, the EVA version is crafted with ultra-light and flexible foam material, which is fully waterproof and washable. From the beach to the garden, tackle any outdoor activity in these structured yet freeing sandals. Birkenstock Birkenstock is deeply rooted in the fine art of crafting premium quality shoes that are good for you. Since 1774, Birkenstock has passed this commitment down from one generation to the next. The result is the absolute best in quality, comfort and support.