The Birkenstock Gizeh is a genuine classic. Modeled on the cork sandal, it is made from ultra light and highly flexible eva. The high-quality, odor-neutral eva has been tested for harmful substances and combines numerous positive attributes. It is ultra lightweight, highly elasticated, shock-absorbent, waterproof, skin-friendly and offers the comfort you have come to expect from Birkenstock.Features: - Waterproof, washable, ultra lightweight- Anatomically shaped Birkenstock footbed in evaSpecifications:Upper:- Eva: Eva (ethylene vinyl acetate) is a high-quality, very light, elastic material with extremely good cushioning. As a result, it smooths out slight irregularities in the floor and ensures that every step is softly cushioned.Footbed: - Eva: Eva (ethylene vinyl acetate) is a high-quality, very light, elastic material with extremely 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 extremely good cushioning. As a result, it smooths out slight irregularities in the floor and ensures that every step is softly cushioned.Outsole: - Eva: Eva (ethylene vinyl acetate) is a high-quality, very light, elastic material with extremely good cushioning. As a result, it smooths out slight irregularities in the floor and ensures that every step is softly cushioned.