I got a new comment on the original post so I thought I'd do an update or whatever it is when you discuss something again.
It seems, per the above mentioned comment, that the spandex scourge has spread to BOY JEANS! MAN PANTS! That wasn't the direction it needed to go. It needed to go away.
And yet, in the past several months I have found several pairs of jeans in thrift of course, that are 100% cotton! Imagine my joy. Part of it is I'm slightly thinner and even one size smaller increases the selection whether thrift or retail.
One pair is a practically new pair of abercrombie and fitch. I would not normally wear that brand, and yet, they are cotton and they fit. Others are ralph lauren, which I've known for a while has a model that fits my physique reasonably well. And finally, yesterday, I found the holy grail of 100% cotton thrift girl pants....carhartt. Wow. They are basically new, though no tags. Girl pants in the lower waisted (I have possibly the shortest waist on the planet), yet 34" length. Hard to get even in retail. They were, by my standards, extremely expensive. $6.00. With no discounts available. But you don't leave that in the store. The company does not make this model anymore sans spandex but with straight legs and a low waist. Even some of their double front pants have spandex. WTF? Seriously carhartt (I'll capitalize that when you start showing ME some respect and make real pants again). Stop with the stretchy BS. I do not want baggy knees and butt, looking like I dropped a load over lunch, halfway through my work day. I also wear work pants multiple days, but try that with your spandex nonsense and I end up with pants that are only the intended diameter at the calf. Jodhpurs anyone? I suppose it would be handy if I had a sudden case of diarrhea and had to walk home. Wouldn't leak out on my shoes.
Anyway, these are great. I'd rather have the brown version, but one takes what one can get when one does not want spandex.
As for the stretchy man pants. Yes, I agree with my commenter and would go as far as calling them an abomination. I have been shopping the men's racks for 100% cotton jeans for a few years, with limited success but it was better than the women's stretchy pants. And now, I must be ever vigilant over there. It's a shame because even in the thrift world, men's clothes are cheaper. Just like in retail.