The Discoverer AT3XLT is Cooper's On-/Off-Road All-Terrain tire designed for the drivers of pickup trucks, work vehicles and full-size SUVs who need a tire that provides the rugged durability required to keep up with their active lifestyles. Engineered to tackle dirt, gravel, mud and the urban jungle, the Discoverer AT3XLT combines off-road prowess with agreeable on-road comfort and year-round traction, including in light snow.