Line-X Standard SBUR Short Bed Under Rail. Standard Line-X is not UV stable and will fade within the first couple months to a dull black/grey color. We recommend also purchasing a tonneau cover. At LINE-X of Silicon Valley and Line-X of Bay Area, we know your truck is much more than a vehicle to you. It deserves serious protection any way you use it. When you’re looking for durability, function and affordability, LINE-X’s proven formula is what you need. Nationwide Lifetime Warranty,Resists Staining from Harsh Chemicals, Prevents Leaks, Rust and Corrosion, No Cracking, Bubbling or Peeling, Environmentally Friendly – VOC Free