The QO 400 features:

• Removable, anatomically shaped cork-microfiber footbed
• Material: water-resistant smooth leather (WRU)
• Footbed lining: microfiber
• Sole: nitrile rubber (SRC)
• Details: nonslip and oil- and petrol-resistant outsole (SRC, FO); energy absorption around heel (E); antistatic protection (A)
• Safety shoe certified in accordance with EN ISO 20347:2012
• Protection category O2