Re: "Under penalty of....
too many manufacturers try to cover themselves by recommending dry cleaning of items which may or may not be harmed by normal washing.
I can recall being surprised at a label which recommended *against* dry cleaning. Not quite sure what the difference is, to be honest. Suits and shirts go to dry cleaning (partly because I hate ironing), T shirts, jeans, underwear and towels all hit the washing machine. I like my life simple :).