The Birkenstock Arizona features a Birko-Flor synthetic upper with a soft backing and two buckle adjustment which helps to fine tune the fit whilst the regular fitting footbed offers superior comfort for the day ahead. **PLEASE NOTE: All Birkenstocks are very generous for size - Know your Birkenstock EU size before ordering!** * Birko-Flor - a durable synthetic material with a nubuck leather like texture and soft fleece backing. * Contoured cork footbed with pronounced arch support, deep heel cup and roomy toe box, finished with a full suede covering. * Lightweight EVA outsole. * Adjustable pin buckles. * Avoid extreme heat. Made in Germany * **Product Code:** 51791 **Birkenstock Size Guide:** | **EU** | **UK** | | ------ | ------ | | 38 | 5 | | 39 | 5.5 | | 40 | 7 | | 41 | 7.5 | | 42 | 8 | | 43 | 9 | | 44 | 9.5 | | 45 | 10.5 | | 46 | 11.5 |