I have a dog so I run CanvasBack covers in all of my vehicles. They're awesome in hatchbacks / wagons. the material is canvas, very strong, water doesn't penetrate it and they keep the back area clear. These basically cover every square inch and they're custom for your car model & options.
They released the Ram 1500 one a few weeks ago so I ordered it -
https://www.canvasback.com/dodge-ram-crew-14555.html
Here's the issue, the RAM 1500 Limited's carpet is too nice. The underseat carpet is the thick stuff so their velcro attaches to it like glue but the floor board carpet on my Limited and probably other models too isn't sticky at all and it's treated with Scotch guard from the factory. They send you this pamphlet:
So we had to buy some mineral spirits from Home Depot. This part kind of sucks because you're basically stripping the scotch guard off your carpet and it took me about an hour. It's below freezing at my place so I ran the truck for an hour to get it hot enough inside, hair dried the carpet, applied the spirits then the rubbing alcohol then had to wait for it to dry then hair dry it again to get it nice and hot again. Then they give you these 3M velcro strips. I'll say this experience is pretty awful...where previous CanvasBack installs took 5 minutes, this took over an hour in the cold (I don't have a garage). As soon as I saw that pamphlet I should have returned them because while it's installed and it's doing okay, It's no where near as grippy and stuck on than if the bottom floor had the same underseat style of fabric that sticks to velcro.
Here's the final photo:
so as usual, it's a perfect fit and the dog is going to love it. I can even drop one or both seats independently or, with the exposed latches, I can put the floor mat back in there + a dog bed. It'll just keep all of the carpet..literally all exposed carpet is now completely covered so that's a win. If their adhesive strips hold up, I'll call it a win but if they peel back and fail, It'll be $300 wasted.