Amazon.com | Birkenstock Men。Description Water-resistant, washable ultra-lightweight EVA sandals Contoured footbed for legendary BIRKENSTOCK® support. The Arizona EVA sandal is made from water-friendly material, giving you a flexible design built on the contoured footbed you love most. The perfect throw-and-go style for everything from the pool to post-workout. *  Made from single piece of EVA *  Water-friendly, lightweight & flexible *  Two adjustable straps with pin buckles *  Made in Germany Materialdetails about product materials Upper: EVA EVA (ethylene vinyl acetate) is a high-quality, very light, elastic material with very good cushioning. As a result, it smooths out slight irregularities in the floor and ensures that every step is softly cushioned. Insole: EVA EVA (ethylene vinyl acetate) is a high-quality, very light, elastic material with very good cushioning. As a result, it smooths out slight irregularities in the floor and ensures that every step is softly cushioned. Brand New without the Original Box. These athletic shoes will be shipped in a generic black cardboard box with a semi-gloss finish and wrapped in tissue paper. For added protection, the sneakers will be properly wrapped in a shrink wrap bag.