The Kerbl 347677 NORAMAX O4 work boot in size 43 is a lightweight and flexible professional boot designed for demanding agricultural and industrial environments. Made from durable polyurethane, it offers excellent insulation down to -30°C, ensuring comfort in cold conditions. This O4 standard boot is highly resistant to animal fats, oils, acids, manure, and various chemicals. It features a self-cleaning profile sole for superior grip and an ergonomic footbed for enhanced comfort during long working hours. An integrated kick-off spur aids in easy removal.