They are referred to as truck or bed caps. Two names I know are Leer and A.R.E. I believe Leer has international dealers. SNUGTOP seems to have a possible international connection. I noticed on the other Raptor Forum a thread about truck caps and they have a blue truck with a Leer cap. All the caps I have ever owned were made locally. They are great for protecting gear but many don't like the look especially on a short bed. You probably won't be able to push the tailgate button to have it drop. Usually you must open the cap first. The extra weight gives great traction in the snow. If you plan on jumping or driving in severe ditches or ruts, stay away from truck caps. The usual weak point is the rear glass and you need to buy the entire frame and glass for replacement. They are also pretty heavy to remove - at least a two person job. SNUGTOP seems to get a lot of positive reviews but also very expensive.
