Lets see if these pictures turn out or not. First time picture poster, long time subscriber.
The cover is made by Access and is for a short bed. I am sure any brand will work just get some measurements to make sure though. There is some little padded strips between the cover and the small u channel and again between the u channel and the toolbox to help keep water out. I get a little moisture down in there for the reason that the front of the toolbox does not make a tight seal to the bed frame.