Kelsy Maternity Shirt DressDescription Modelled by 37 weeks pregnant Caroline. Fits small to size, we suggest sizing up from your usual size. Weve given Kelsy, our best selling maternity dress, a fun update with polka spots. So versatile, itll see you through every stage of pregnancy (and events too be it work, date nights and baby showers). A bump friendly take on the classic shirt dress, it fully buttons through and features side ties which fasten over the bump to give shape.