Simplicity 3187; ©1950; Teen Age Sun-Back Dress and Jacket: The dart-fitted sun-back bodice is styled with pointed flaps which turn down at the upper edge in front. Either shoulder straps or featherboning may be used. The skirt has double pleats in front and side pockets trimmed with pointed flaps A Peter Pan collar is a feature of the dart-fitted, waistlength jacket which buttons in front. Style 1 jacket is sleeveless. Short sleeves are featured on the jacket in Style 2 or 3.