Ironhead IDL300-FS is a closed shoulder drive tire made for line-haul applications. Designed with a SmartWay verified technology, IDL300-FS can improve fuel efficiency by 3 percent or more, making it a more environmentally friendly tire. Extra-wide 30/32nds deep tread offers a great tread life and provides an exceptional cost per mile. Solid shoulder ribs and extra-wide tread footprint deliver superior stability and resistance to uneven wear, while three rows of aggressive tread blocks enhance traction and resistance to tread squirm. Ironhead IDL300-FS is a perfect tire for line haul trucks, regional trucks, as well as pick-up & delivery trucks.