Special men's footwear with leather upper, including artificial leather/microfibre, insulated with inner protective socks made of thermoplastic materials, with multilayer 3-layer or 4-layer package of insulation (Um) on two-layer oil and petrol resistant, acid-alkali resistant (acid and alkali solution with concentration up to 20%), frost-resistant, heat-resistant polyurethane sole with thermoplastic polyurethane PU/TPU (T) lining, including two-layer polyurethane sole with frost-resistant thermoplastic polyurethane PU/TPU (Tm) lining of injection moulding method of sole fixing
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