Bras and Knickers from "Good Needlework" (June 1931)

 In June 1931, Good Needlework made the patterns for these bras and knickers available to their readers—along with embroidery transfers for people who wanted to add a decorative touch to their lingerie.

While undeniably less bulky than Victorian and Edwardian underwear, these garments are still pretty roomy by modern standards.  You'll notice that the bras now have cups: a new touch since the flat-chested 1920s.  However, they lack the padding, wiring and circular seaming used to "lift and separate" women's breasts in the more bosom'y 1940s and 1950s.