All Terrain truck tires are designed with a number of features to provide traction and handling on a variety of surfaces. They have a more aggressive tread pattern than standard tires, with larger and deeper tread and grooves. This provides better traction on loose surfaces like dirt, gravel, sand and snow. While being more aggressive, they provide good performance on paved roads, with tread designs that minimize noise and improve handling on wet and dry surfaces. In short, the purpose of these tires is in their name: All Terrains.