Birkenstock - A 630 - Black PolyurethaneThe A630 covers all the bases when it comes to stringent hygiene standards and reliable nonslip properties. Its enclosed design and the nonslip sole offer reliable grip in food service, medical, and other work environments. The oil resistant polyurethane shell is also waterproof, allowing it to be cleaned efficiently and thoroughly. Removing the cork latex footbed, the clog can be washed or autoclaved up to 176 Fahrenheit. The contoured footbed is