Simplicity 3186; ©1950; Teen Age One-Piece Dress: Shirred shoulder seams with button trim and a full-gathered skirt with a deep soft pleat at the center front are features of this sleeveless dress with bias-cut bodice. Style 1 has a V neckline and heart-shaped pockets trimmed with eyelet embroidered edging. The neckline and skirt pleat of Style 2 have scalloped edges.