Men's 237 boots with PU/N (N; Np) sole Um MS

Special men's footwear with leather upper, including artificial leather/microfibre, insulated with inner protective socks made of thermoplastic materials, with puncture-proof metal insoles, with multilayer 3-layer or 4-layer package of insulation (Um) on two-layer oil and benzene resistant, acid-alkali resistant (solution of acids and alkalis with concentration up to 20%), frost-resistant, heat-resistant polyurethane sole with PU/N nitrile rubber lining (N), including two-layer polyurethane sole with nitrile rubber lining with anti-slip inserts (Np) of injection moulding method of sole fixing