Originally Posted by fragglerock
Try hanging it upside down for a day.
That's what I was going to advise. Whenever DD dance costumes arrive shipped "smushed-up" (hows that for descriptive words) in a bag, we do this in order to make the net stand out. If it's real wrinkled, use steam from a steamer or put in the bathroom with the door closed and a hot shower running...the steam from the shower usually does the trick.