men's work shoes with steel toe cap safety boots work in construction warehouse workshops comfortable shoes non-slip waterproof anti nails leather shoes breathable genuine leather upper 2: good property in non-slip rubber sole, wearable, oil, acid and alkali resistant, energy absorbing heel; Dual density PU injection sole 3: 200j impact resistant steel toe cap composite fiberglass toe cap 4: 1.1kn puncture resistant steel plate midsole, composite material leather