If U tow a TT, Do U have a tonneau or shell and bed slider?

I've used a Roll n Lock M series on my past 2 trucks. I'm very happy with them and like the convenience. When you need to secure stuff, just lock it up. When you need it out of the way, just roll it up out of the way. I've had a couple fiberglass tonneau covers and hated them. They were always in the way when I needed to haul something big and they're a pain to take off.

www.rollnlock.com