Boots PU outsole and Rubber outsole Safety shoes can be widely used in oilfield, mining, agriculture, industry, restaurant, ... -49)Standards: S1,S1P,S2,S3,SB,SBPSole: IPU/PU/Rubber/Dual DensityUpper: Genuine Leather (Nubuck, Full Grain Cow Hide Leather ... you are interested in our products, pls contact me working safety shoe