Authentic Birkenstock! Brand New in Box! European size 39 Narrow, which fits women’s US size 8 and 8.5 medium. The Birkenstock Arizona Big Buckle EVA Sandals are a supportive and stylish option for casual wear. These sandals are a solid black color with a big buckle closure, making them easy to slip on and off. The Birkenstock brand is known for its high-quality and durable footwear, and the Arizona model is the classic choice. With a comfortable eva sole, these sandals are perfect for the summer!