BIRKENSTOCK developed the Profi Birki to offer perfect grip and sure-footedness in almost any work environment. With its raised heel section and extended front, it encloses the entire foot and promote Removable, anatomically shaped PU footbed, washable at up to 60°C Material: PU (polyurethane) Footbed lining: fabric Sole: PU (polyurethane), nonslip, oil- and grease-resistant Certified occupational footwear in accordance with EN ISO 20347:2012 OB E (SRB category)