Want to wear your Birkenstocks to the beach? You surely can thanks to the EVA collection. Made from 100% shock-absorbing EVA rubber, they are completely waterproof, extremely lightweight and very comfy! The anatomically correct footbed offers more support than your average thongs, and they are perfect for travelling too! Updated now with a navy buckle for a seamless and elegant finish. Features 100% EVA synthetic Water, oil, and grease resistant Arch contours Fitting And Care Notes: The Gizeh EVA is only available in regular width, but people with narrower feet can usually wear this width as it is adjustable. They are quick to soften up but may rub a little bit on the foot to begin with so it's best to wear them in gradually. Please avoid leaving these in direct sunlight or extreme heat as EVA can shrink. Please note that Birkenstock EVA sandals are not designed as an everyday street shoe. They are perfect for around the pool, at the beach or on the boat, though they are not designed for regular use on concrete or pavement and this will impact their longevity.