Designed to bring Birkenstock comfort and support to your favorite trail and water based activities. These off-road ready sandals feature a direct attach PU footbed, a rugged PU/TPU outsole for added traction and sturdy hook and loop closures for a secure fit. The upper is made from the skin-friendly, hard-wearing synthetic material Birko-Flor®. Anatomically shaped PU footbed. Upper - Birko-Flor® Futura. Footbed lining - polyurethane (PU). Sole - light polyurethane sole (PU). Details - two straps, each with an individually adjustable hook-and-loop closures. “Made in Germany”. Upper material - Birko-Flor®. Birko-Flor® is a skin-friendly, tear-resistant and easy-to-care-for synthetic material which is exclusively used by BIRKENSTOCK.