... available: black , taupe brown,olive green,brown,yellow2 anti-hit,acid and alkali resistance,oil resistance and water proof3 ... optional functions:puncture-proof, anti-static, high temperature proofSafety shoe’s standard list:StandardPropertiesSBBasic ... penetration and water absorptionS3S2 + Penetration Resistance + tread pattern 2011 new style professional safety shoes