The Pro Comp Xtreme Mud Terrain tire incorporates "Tri-Ply" construction, which provides three full-ply sidewall along with two layers of opposed-angle steel belting, combined with a seamless layer of nylon that spans the entire tread surface. This allows for maximum puncture resistance but still has total predictability and flexibility when using lower air pressure off-road. The extra thick sidewall resists cuts and abrasions while the unique shoulder lugs enhance traction on rocks or in mud. The Pro Comp Xtreme Mud Terrain is one of the most widely respected mud terrain tires on the market. It digs deep into mud, snow and sand, yet is completely street-able with low noise and long tread life.