Keep your usual size.Size fit for bust(S)33-35" (M)35-37" (L)38-40" (XL)40-42"95% Rayon 5% Spandex.This maternity dress is made of soft and elastic material.Sleeveless comfortble wearing.Pleats on both sides of the skirt can provide adequate space for growth during pregnancy, and can also be worn after pregnancy.If there is any issues or suggestions,please feel free to contract us,we will provide 100% satisfied service.