On their amazon page they state the following. I am assuming PRC = People republic of china.I went with a USA made strap, Rhino USA. I got the 30 footer, but might want to pick up a 20' one too.
https://www.amazon.com/gp/product/B06WRSR2PG
It worked well the one time I have had to use it it so far. I like flat straps too, as you can hook them to the rear tow hook, and have the rest in the "trunk" with the strap under the tailgate. Ready to go!