I ordered this dress and the "Grace" style dress and petticoats from Lindy Bop for a Mediterranean cruise.  These dresses are perfect for "elegant" or formal nights on the ship, and are wonderful dresses to go dancing in.  In reviewing the sizing, it's obvious that British sizes are different than American, so you'll need to take your measurements and order appropriately.  I wear a 14/16, so ordered a 4X to be safe.  The dress is a bit big, so I could have ordered a 3X and think it would have been better, but will keep the 4X and wear it.  The dress looks fine without the petticoat, but the petticoat really makes a difference, and I'll always wear the petticoat when I wear the dress.  I also purchased a shrug sweater since my standard cardigans don't really look right with the style, and I wear my pearls to really complete the whole Audrey Hepburn "Breakfast at Tiffany's" look.  I received so many compliments from strangers who said they loved my dress and asked where I got it, especially from older ladies who wore these fashions years ago, and people who love the show Mad Men.  If you like retro fashions, this is a great choice.