Inspired by the original cork sandal, this sandal is made of ultra-lightweight and highly flexible EVA. These sandals are shock-absorbing, waterproof, and skin-friendly. Wear them to the beach, in the garden, or by the pool. Sandals for all-day playtime fun! BIRKENSTOCK anatomical EVA footbed Upper/Lining/ Sole: One-piece molded EVA Details: Two straps, each with an individually adjustable metal tongue buckle; waterproof, ultra-lightweight Made in Germany