... SB, S1 and S1P,S2,S3 standards, Oil, acid, and anti-static resistantQuick DetailsUpper: Genuine leather ,embossed cow leatherOutsole: double density ... available: black , taupe brown,olive green,brown,yellow2 Function ; anti-hit,acid and alkali resistance,oil resistance and water proof3 ... SB,SBP,S1,S1P,S25 Advantagebreathable materials, high abrasion resistance, anti-slip,shock absorber Safety Shoes