Birkenstock Arizona Sandals In Stone Regular Fit. Two straps across the foot in stone grey faux leather with adjustable Birkenstock branded copper coloured metal buckle fastening. A contoured suede leather footbed and a dark brown EVA sole with the signature Birkenstock logo embossed on the instep. Please note to go by the EU sizes: 41 - 7 42 - 8 43 - 9 44 - 10 45 - 11 46 - 12..