Womens boots 227 with PUN N Np sole Um KP

Special footwear for women with natural leather upper, including with artificial leather/microfibre lining, insulated with internal protective composite (polycarbonate) underfoot, 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 PU/N nitrile rubber lining (N), including two-layer polyurethane sole with nitrile rubber lining with anti-slip inserts (Np) injection moulding method of sole fixing