Simplicity 5364; ©1964; Sub-Teens One-Piece Dress: The Princess Line dress has front and back side sections that feature inverted pleats with separate underlays. The dress fastens with a back zipper closing. V. 1 has a round, lowered neckline and short, set-in sleeves. A self fabric bow above waistline trims the dress. V. 2 is sleeveless with a round neckline and button trim. The pleat underlays are of a contrasting fabric.