Odour-neutral EVA The Birkenstock Men’s Arizona EVA Sandals are a classic style that features a two-strap design and an EVA sole. The high-quality, odour-neutral EVA material is ultra-lightweight, highly elasticated, waterproof, and skin-friendly, offering the comfort you expect. The footbed is anatomically shaped and made from EVA, and the sandals are also ultra-lightweight and comfortable, waterproof and washable, and odour-neutral.