The BIRKENSTOCK Atacama - 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”