I've done a fair amount of traveling with my kilts. Here is my method. The kilts are in the closet, hanging from 2 clamp type trouser hangers, folded so the pleats are on the outside. Put the empty large suitcase on the bed. Place the kilts being taken in the suitcase - just as they were hanging, hangers and all. Cover them with a layer of soft clothing, underwear, poloshirts, etc. Finish packing. The kilts will stay flat and be just fine when you take them out and hang them up at your destination. If there are minor wrinkles, hang them on the back of the bathroom door while you take a nice hot shower to refresh from your travel. By the time you are done, the kilts have hung out nicely.