I purchased a decent quality, fairly popular, inexpensive, custom fit, no name bed mat from Amazon.
Issue is at freeway speeds any odd wind gust lifts the back of the mat, big gusts make it flap like it will try and jump out of the bed. Like really quite disturbing when it happened first...
The exposed bottom edge of the rear window looked awfully vulnerable to accidental damage by shifting loads or clumsy loading of junk for the dump (guilty on my previous truck). So I added a strip of common 2" black/chrome body side molding (this product was off Amazon). Plus it reminds me of...
I just posted this on Reddit, thought someone here might llke to read it too.
Remember, anything you pay sales tax on, such as a Doc Fee, should be added into the price to see if you are getting close to MSRP. In hindsight maybe I should have taken one of the deals here, but like lots of people...