Gorgeous dress. I usually wear a 10 to 12 and this dress is very comfortable as a ten with a little room so I would say it runs "roomy". It is absolutely gorgeous and comfortable to wear for a party where you want to dance. I got a million compliments on it. The fabric is beautiful, very elegant and I love it so much I bought another in a similar color and slightly different style for my upcoming wedding (2nd marriage) in solid ivory with a gold mesh overlay with illusion lace at the neck and sleeves.