Do they have latex or spandex? Latex is not usually used to make clothes stretchy - that is usually spandex (Lycra is a brand name). If it is Lycra then you should always wash on warmish temps and dry on Cool - never hot. You can iron them carefully with a cool iron, but you often don't need to iron them much. Heat is the enemy of spandex. If they get too hot they will lose their stretch and become limp and baggy - never a good look.

oh, Oregpsnow, of course it's spandex. Duh, where I came up with latex I'll never know. thanks for your reply, I just do not like the way the clothes looks when the wrinkles are still somewhat there. I know the clerk told me not to use hot on something I bought earlier because a hot iron will melt the spandex---exactly what you said. Guess I'm gonna have to read the labels closely. Thanks for your help. I appreciate it so much.