Simplicity 3013; ©1959; Half Size Slenderette - Women's One-Piece Dress with Bias Underarm Section: "Simple to Make" dress has kimono sleeves with underarm sections for freedom of action. Side seam pockets in flared skirt are optional; self fabric or purchased belt. V. 1 has shaped neckline, top-stitching detail. Buttons close dress front to hipline with pleat below closing. V. 2 has contrast collar and cuffs; button closing extends to hemline.