Kids' Birkenstock® waterproof EVA Rio sandals Item E7438 Color: Size: All sizes are US sizes. K9 K12 Size Charts Quantity: 1 2 3 4 5 6 7 8 9 Prices do not include taxes. Add to Bag Wishlist Add to Bag Add To Wishlist share: size & fit Product Details The German-based Birkenstock family has been making footwear for over 230 years, which pretty much speaks for itself. These colorful waterproof sandals are comfy, lightweight and easy to pack (hello, vacation!). EVA upper and sole. Import. Online only. Item E7438.