Vintage size 12 which is a 34 bust, 26.5 waist, and 36 hip.
Vogue American Designer 1349; ca. mid 1980s; Ralph Lauren - Misses' and Misses' Petite Jumpsuit. Straight-legged jumpsuit has notched collar, very loose-fitting pleated bodice, yoke with forward shoulder seams, slightly dropped shoulders, front waistline pleats, elastic back, slanted and patch pockets, mock fly zipper, attached belt, mock bands and short sleeves. A: wide-legged, above mid-knee.