Birkenstock Arizona Copper BF -Regular Fit The legendary Arizona is for many, the epitome of the Birkenstock sandal and has been one of the most popular models, delighting wearers worldwide for decades. The iconic design is simple, a two-strap upper that can be individually adjusted to the wearer’s feet using two sturdy buckles complemented with the signature comfort of the Birkenstock footbed – guaranteeing a good fit and firm support. The variety of available materials and colours make the model a sandal for all walks of life.