Rear seat cargo mat cover thing

I usually keep my rear seats folded down in my double cab and have been looking for something like a rubber mat with a raised edge lip to put over the blastic backs. I want to protect the back of the seats and increase friction to hold things in place. I've searched the forums but haven't found anything that fits what I want. Anyone have a good suggestion?

 

Couldn't find anything also. Only thing close was a floor mat for Access cabs that covered when the seats were down.

 

No lips on these, but each works fine:

$35 Bedrug | Folding Track Mat / Knee Protection Mat | TrailerWare | 2' x 4' / Charcoal Grey | TW2X4MAT

http://www.amazon.com/Bedrug-TW2X4M...&redirect=true&ref_=oh_aui_detailpage_o00_s01

 

So is there a made to fit mat or rug ish cover to fit the back of the back seat cargo platform ? Wanting to take the Tacoma to Mt. Rushmore in a few weeks and I don't want the luggage making noise or scuffing it up back there .

Some vel - crowed on bed rug type of things would also work as another layer of sound insulation too when up . Anything out there ?

MM

 

oops , 3rd. gen question .