Just in time for the 2018 holiday shopping season, Birkenstock has released one of their most colorful and unique Arizona styles EVER, the Sonar Geometric Pink. What makes this version of the Arizona different than others? For starters, the sandal features a bold geometric pattern on one half of the straps (which are textile), while the other contains a colorful splash of color, including pink, purple, and turquoise. Two sandals in one? This is about as close as it gets! Another unique feature about the Arizona Sonar Geometric is that it contains a grey microfiber cover (which is over the classic cork Birkenstock footbed), instead of the usual taupe suede color. This allows for the colors on the straps to pop, and also brings out the white and grey portions of the pattern. Size 37 or women’s 6-1/2 to 7