Looking for best Tonneau cover. Have always had ARE fiberglass ones but now want one that is secure and not able to be ripped open with a pocket knife.
I have had Truxedo and am on my second Access roll-up tonneau. They work great. They keep things relatively clean unless you consistently drive on dusty roads. When I load an ATV or snowmobile into the bed, I just roll up the tonneau and snap the strap around it. You get full access to your bed or full coverage.
You mentioned "not able to be ripped open with a pocket knife." This was addressed on one of the RAM forums a few years back because of statements like yours. Nobody, and I mean nobody, was able to personally say that they or someone that they actually know had this happen to them. Not even an internet troll offered up an example. Has it happened in rare circumstances? Probably here and there, but about as much as someone can pry open a fiberglass tanneau or break into a topper.
I keep valuable power tools, my laptop, and other things in there all of the time. I don't keep a briefcase full of cash in there but have never been afraid to keep valuables in the truck bed. That said, be smart about when and where you are when putting any valuables in any part of your vehicle.