The Arizona The Arizona style has become a symbol for the Birkenstock brand world wide. Whether at work or recreation, this versatile classic Birkenstock is a favourite. The Arizona has for years been one of our most popular models of sandals worldwide. The variety of available materials and colours make the model a sandal for all walks of life. A waterproof alternative to the Classic Birkenstock Arizona. Great for the beach or beside the pool. This style must not be left in direct sunlight and this material is not designed to be worn day in day out, the traditional cork footbed is better for long periods of time and lengthy walks. This EVA style is manufactured in Narrow only from sizes 36-41 and in the Regular width from 41-46. Premium Materials Every pair of Birkenstocks is made from the highest quality materials. EVA Upper / EVA EVA - Ethyl Vinyl Acetate is a non-toxic synthetic compound. Creates lightweight and flexible footwear that is shock absorbent. Also resistant to water, oil, and grease. It can shrink at high temperatures. Made from Ethylene-vinyl acetate, this footbed is lightweight and flexible and still offers contours and arch support while being completely waterproof.