Rubber Bed Mat

[Freestate]

I know that this has been posted several times, but a few of the threads are a bit outdated.

I am looking for a rubber bed mat for a 1972 Chevy C10 long bed. I know that they probably don't exist for a perfect match, but has anyone ran across a brand that does the job?

I've done a lot searching and this is about all I've come up with. Think any of those will work?

http://members.peak.org/~robbpynes/rbr/truck.htm
https://www.etrailer.com/question-61188.html