I ordered this dress in a size XX.  I am 5' 4" tall, weigh 166 pounds, thin boned and it fits me perfectly.  In fact, I love it so much that I am going to wear it as a dress.  Senior ladies, which I am, wear these knit dresses to church with a sweater which is my plan.  If, and when it becomes "stretched out" as some reviews claim, then I will use it as a night gown.  I wash all my clothes in cold water to save electric costs so this will be washed in cold water.  The fabric is definitely not see through, as one review stated, but is soft and comfy.  I plan to order another one in another color the near future.