A bed liner is a thick pile of carpet top. The bed liner comes from both the plastic as well as the textile fibers. If you are carrying any soft elements or glass items that can get damaged with automobile jerking, bed liners can protect them. They will ensure a thick layer of soft fibers that will work as shock absorber for the items you are carrying on your truck. Carpart4u.com has the perfect collection of bed liners for all the truck owners.