1.Standard: CE EN ISO 2.Upper:Suede leather 3.Outsole: PU 4.Technology: DESMA machine 5.ODM/OEM More details of our used work bootsSize EU 38-48 Lining Breathable Mesh UpperSuede leather Outsole PU Technology DESMA machine WITH With steel toe and steel midsole Function Water-proof, anti-static, electric shock resistant, oil resistant, slip resistant, puncture resistant, Acid and alkali resistant ...