EBC has a few different levels of pad materials: Greenstuff, Redstuff, and Yellowstuff. For trucks and 4x4s, the Greenstuff and Yellowstuff are going to be your two choices. The Greenstuff offers "modest brake upgrades" while having extended life and resistance to off-road variables such as dust and sand.We went with the Yellowstuff pads. The Yellowstuff is EBC's race high-friction aramid fiber pad that offers the best stopping improvement. EBC specifically states on its website that this is NOT a low-dust pad, and that's just fine with us.