From Birkenstock, the Women's QO400 Leather Professional Slip On Sneakers feature: Water resistant leather upper The shoe is certified in accordance with EN ISO 20347:2012 and meets the requirements of protection category O2 Soft padded collar for extra comfort Slip on design Removable, anatomically shaped cork-microfiber footbed Leather lining Supports the arches of the foot and has a deep heel cup for lasting comfort and support Nonslip and oil- and petrol-resistant rubber outsole Imported.