Pockets! Size down.
"I am so happy I found a Spartina dress with pockets. Sure wish they would make more of them. I did size down and also washed and dried it to shrink up a bit. A little long on my 5'2" frame so I will get it altered. The sleeves bell out a bit wider than I would prefer but it is a fun dress. For reference I am about 120lb and normally a S for my curvy hips, but went with an XS in this one."
