I remember some Lycra shorts, printed to look like pumice washed Denim shorts..
pockets were just the image of pockets.

as was the rivets, just a picture .

after I stopped wearing Levis, the hair on my legs began to recover.
and I had some..

I just buy sweat pants any more.. a nylon smooth face, polyester fleece back,
compound knit fabric looks OK.

Its the jersey knit that gives when you move ,
as opposed to denim woven canvas that wont.