Oliver Footwear's firefighting and emergency services boots are designed to be the safety footwear choice of the relevant agencies and their frontline personnel. Features include - Water resistant and flame retardant leather TECtuff® toe bumper protection; Heavy duty red Nomex® stitching and flame proof laces. The HS66 Series features a Heavy Duty Nitrile Rubber Soling System, with an integrated comfort layer of urethane cushioning. The hard-wearing nitrile rubber outsole, provides a level of comfort and flexibility, unique to Oliver boots.