Levis Shirt Mens Size XL Metal Buttons Blue Jean Denim Red Tab See Tag "Sweater"

Unusual tag, but authentic Levi denim shirt. See embroidery Trailer world for on front pocket and back top. I tried to find information on why this tag might have Levi's sweater, but unable to come up with anything. Maybe a true Levi historian can tell me something about the tag. Regardless, this is a very well-made shirt, a medium blue denim and 100% cotton. I cannot find a year on the tags but believe it might be Y2K era. See measurements and tags and photos