Machine wash Keep your usual size. Size fit for bust(S)33-35 (M)35-37 (L)38-40” (XL)40-42; Designed for simplicity, fashion and convenience, it is comfortable and complementary during pregnancy and lactation. This pregnant shirt is constructed from a spandex blended soft and stretchy fabric which is designed with wrinkles on the side of the abdomen to accommodate your growing abdomen. 95% Rayon and 5% Spandex,Machine wash and dry. If there is any issues or suggestions,please feel free to contract us,we will provide satisfied service.