I have a pair of pants that is a stretchy polyester/spandex knit. They are harem-type pants with elastic at the waist and cuffs and are not lined. I just realized that the label says "Dry Clean Only."

With a polyester crepe or a lined item, I would always follow directions, but these are a stretchy knit material. Is there ever an occasion where a stretchy knit polyester/spandex could be ruined by washing? I would wash on delicate and hang dry, just in case, but I have other items that have the same fabrication and feel that regularly go through the washer.

So my question is when do you follow label directions and when do you cheat? Have you ever ended up ruining anything?