*My experience with these dresses last year is that these dresses run small in the chest area. I am typically a L/XL in American sizes and I sized up to 2x in most of the Mommy & Me Dresses strictly for the chest area. The material is quite stretchy however. The lower half of the dresses are nice and flowy. Plenty of room. There is not a big difference in between the sizes so when in doubt, size up!
*The Black, Purple, and Yellow Dress is not available in 3x.