CE EN345 S1 1.genuine leather upper 2.PU dual density outsole 3.impact and puncture resistant,oil acid slip resistan Safety Shoe 9503CE EN20345 : 2004 ; SB,SBP,S1,S1P,S2,S3Detail : upper:black embossed cow hideinsole: breathability and comfortabilityoutsole: PU injectionsize:36-47color :blackFuction :anti-hit,oil resistant ,acid and alkali resistance ,6 kv eletricity resistant, ...