Standard: SBP / S1P / SB / S1 / S2 / S3 available Material:Upper:PVC or leather, steel toe,more coloravailable Lining: Canberra Outsole:PVC Insole: EVA mat, steel solewithout steel plate Buckle eyelet withlace Function: 1: Steel toe:impact-proof 2: Inner steel sole: impact-proof 3: Machine sewing lining: strong and comfortable 4: Rubber/oxford sole: wearable and well bended 5: Water proof 6: Non skid 7: Oil resistance 8: Acid & Alkali resistance 9: Heat resistance 10: Anti-shock 11: Anti-static