Experience has taught us to never send anything to a ship's laundry that we care if it gets damaged or discolored. HAL is the worst, Oceania the best and Princess somewhere in the middle -- although, I suspect like everything else, this is ship specific. I think socks are the only thing my wife will send of hers. On ships that don't have self-laundries, she washes her delicates in the sink and hangs them to dry.