PLEASE CHOOSE YOUR SIZE BASE ON BUST MEASUREMENT BELOW * For 1-3 Months: Use your pre-pregnancy size; For 4-6 Months: Size up 1 size; For 7-9 Months: Size u * Bust (S)33-35 inches (M)35-37 inches (L)38-40 inches (XL)40-42 inches * Length (shoulder to bottom hem)(S)27 inches (M)27.5 inches (L)28 inches (XL)28.5 inches * Machine washable