I just picked up more Athletic fit tapered jeans from Old Navy for $30 ($40 full retail)
They have 1-2% Spandex, and the rest is cotton.
They aren’t too thick, and not too thin.
I was having problems finding pants that would flex with me, and these are really great for the price, with no weird fit.
(My waist line is bigger than ever, and I needed some more baggy pants.)