... proof, Steel toe cap, oil-resistant, acid/alkali resistant, electronic insulated, high-temperature resistant, anti-static, deodorization and sweat ... Lining: BK mesh5. Insole: Canberra+EVA, flexible, abrasion, resistant and comfortable.6. Outsole: PU/PU Dual Density sole7. ... used polyurethane materials, a mould with oil resistance, anti hit cross, wear-resisting, acid and alkali resistant, insulation ...