Oliver AT's ALL TERRAIN is just that… suitable for the all terrain rugged outdoor working environments. This footwear combines the dual density rubber sole technology and COMFORTcushion PU/Poron comfort technology, that not only provides excellent underfoot comfort, but also can handle the harshest working environments found in the Mining, Casting/Smelter and Emergency Services Industries. These styles enable the wearer to work long shifts and helps eliminate foot, leg and lower back fatigue.