I usually wear a size S, M but here've ordered because the blouse should nicely fit loosely and I have yet to get the twins a huge belly. Despite my blouse in M is too large, especially around the chest is very wide cut. If you then rumbindet the band below the breast, raises her blouse above very unfavorable wrinkles. The corrugated material also contributes to much and can appear a very broad. Otherwise, the blouse is but really sweetly. I would recommend the blouse in the regular size or intermediate sizes to order even smaller.