The Birkenstock Super-Birki is a light weight durable clog. Made from polyurethane, it is water resistant and dirt-repellent as well as oil and grease resistant. This extremely resilient material is washable to 80?Celsius and can be easily disinfected. They are ideal for the medical profession, kitchens and the food industry due to their ability to be kept hygienically clean. They are also suitable for domestic use such as in the garden and around the home.