Men's Birkenstock Lutry - Sandcastle Suede/Cognac Oiled Leather The BIRKENSTOCK Lutry is a slipper that can be worn as a backstrap style or as an open clog thanks to the flexible ankle strap. The footbed can be removed, for you to choose between three different footbed versions. This basic version features our standard footbed. It replicates the natural print made by a foot walking on sand and will see you through the day in comfort. The upper is made from extra thick, oiled nubuck leather with an open-selvage finish. DETAILS: Removable, anatomically shaped cork-latex footbed Upper: nubuck leather Footbed lining: suede Sole: natural rubber with cork elements Details: clog with a flexible backstrap and an individually adjustable metal pin buckle Footbed made in Germany