Classic black leather zip up, dress safety boot Convenient heavy-duty YKK zip with zip fastener Fully lined SPS Max—XRD® Technology in the heel strike zone for increased impact protection Comfort Air PU footbed which is anti-bacterial, breathable and washable Lightweight TPU sole with rubber inserts delivers excellent grip and offers great wear resistance oil, acid & organic fat resistant heat resistant to 140?C slip resistant Ergonomically engineered toe spring for reduced wearer fatigue Nylon shank—ensures correct step flex point, assists with skeletal stability Electrical hazard resistant Broad fitting impact resistant steel toe cap