Looking for a "soft" rubber truck bed mat

Had that problem when I first got my Bigfoot way back in 2002. Got a 4x6 rubber mesh mat from a carpet store. They are made for under area carpet to keep it in place. I have the usual rubber bed mat, then put the mesh mat on top of that when I load the camper. I have a L/B truck so position the 6' mesh mat from the tailgate forward since the front of my camper never did move around like the back end. Anyway, camper never moves a bit since getting that mat, and even though it is pretty well flattened out over 12 yrs of pounding under my 9'6" Bigfoot, it still works great.