I’m sure many SF posters are mature (note , not ‘old’) enough to remember proper,imported Levi 501s, made from from heavy denim on 183 looms with the all-important striped selvedge seam that could be displayed wnen you turned them up . When I started wearing 501s I think they were around £4/-10s (took a moment to remember how to type that!) but they’re now between $250-300. However, I’ve just found a French jean maker, who makes the same (but better, heavier denim) for under 100 €. Can’t go on enough how much I like these slightly retro jeans. See:-
https://www.octobre-editions.com/fr/product/jean-kurt/noir-delave#size-27