labor safety shoes, 1.steel toecap and midsole. 2.upper: genuine leather, 3.sole: PU 4.size ... brown,olive green,brown,yellow2 .anti-hit , acid and alkali resistance , oil resistance and water proof3 .optional functions : puncture-proof , anti ... slip ,breathable function. Reasonable design,excellent quality,superior performance SB: shoes and boots comply with basic requirement only. (steel toe cap)SBP: ...