I work with dogs daily which includes transport. In the past, I've had to put down a tarp (waterproofing) then blankets on top of the tarp. This system made cleaning a chore...much harder than it needs to be!! All the blankets would have to be washed, the tarp cleaned and all such removed just to vacuum and clean the truck. And, this system didn't provide protection for the interior "walls" or sides. With all of the mud, occasional dog poop (anxious rescues), water, and debris from pack hiking adventures, I needed something very strong, resilient, easy to clean, easy to reinstall, and something that covered the side walls too. And, this liner does it all! Hair, drool and all things dog (wolfdogs too) hasn't been able to damage it. I highly--VERY HIGHLY--recommend these liners!!