Birkenstock Men's Skye Herren Loafer Shoes Velours Sand Size US12 EU45Description:New with BoxBIRKENSTOCK uses only high-quality natural and synthetic materials and blends in the production of its sandals, clogs and shoes. All materials are subject to strict quality controls. Of all materials, leather has the best properties for making shoes. This sustainable material is breathable, absorbent and pleasantly soft, so it adapts well to the shape of your foot. Leather is also very easy to process. It is very pliable, meaning it can be stretched, shaped and stitched. Leather is very robust and protects your feet when you wear clogs and closed shoes. BIRKENSTOCK uses very high-quality, thick and unsplit leather. This leather is dyed thoroughly. This maintains the open-pored surface structure of the material.