unfortunately the sizes are not accurate anymore, so I guess you really need to have tried the size on before ordering online. I have a number of Orientique and Tropic dresses so know the size in the type and style of dresses I buy. I ordered online for the first time and found both dresses were now 1 and 2 sizes larger than the normal size I have purchased during the year, so just make sure you have tried the dress on in a retail shop before you order online so you won't be disappointed. One plus for me, the retail shops will get more business now.