Birkenstock Arizona 2-Strap Birko-Flor Sandals, Basalt, 38 M EU - 7 to 7.5 US Women Synthetic Birko-Flor Upper Imported Birkenstock Arizona Birko-Flor Sandals, Basalt. Euro Size 38 M = (Medium/Normal Width = Not Narrow/Small Width). Fits US Women Size 7 to 7.5. Original roomy fit with space for your toes and feet to wiggle and be free. Birkenstock Arizona Black Birko-Flor Upper; Unisex Sandal. Arizona from Birkenstock is a classic two-strap style with fully adjustable straps and shock-absorbing EVA sole. Anatomically correct cork footbed that is both renewable and sustainable. Suede-lined, contoured footbed will mold to the shape of your foot. PLEASE READ: Product update. **** Newly updated 2016/2017 model (latest production); Arizona may now ship in newly updated Birkenstock shoe box (new blue design with handy size measuring guide printed on inside of shoe box). Sandals may now also come with black (not yellow) lettering (black printed logo and size information printed on footbed). ****