Features of Birkenstock Honolulu EVA sandals: size women’s 8 Material: Made entirely from ultra-lightweight and flexible EVA (ethylene vinyl acetate). Design: Modeled on the classic cork Birkenstock footbed, providing anatomical support. Properties: They are waterproof, shock-absorbent, and skin-friendly. Usage: Ideal for various settings including the beach, pool, garden, or as recovery sandals.