I have 5 pairs of BHS plain black cotton pants. I have had them for 5 years, through2 babies, and I am SCARED to throw them out, in case they are not made like that any more.
Never a fray, or a loose elastic have any of them given me. They don't go up my bum, they don't roll down and sit in the buttock/thigh crevice, they are purely functional pants.
I think I love them.