Mara Hoffman, Perdita Dress, White, Size 2

"Sleeveless maxi dress with a fitted bodice and A-line skirt. Sweetheart neckline, princess seams, hidden back zipper, and side-slash pockets." I bought this as a potential dress for my backyard wedding but there's no way I can fill it out. Unworn, just tried on once in my home. It's a beautiful summery material. Also comes lined with a sewn-in liner. Has a nice weight to it. Mara Hoffman describes this as being true to size but I think it's roomier than the measurements they list as a size 2 on their sizing chart. Also, I don't know why they list it as having "side-slash pockets" because I've turned this dress inside out and there are no pockets?!