How to get the 50’s hourglass shape ... today it's shapewear. The 50's ... foundation garments. A garment women crammed themselves into. A real girdle in order to make their clothes fit better. Shapewear is the way to go today to properly wear a vintage pencil skirt, it tucks everything neatly into place, smooths out every bulge and minimizes the waist nicely. And they're actually quite comfortable once you get used to them!
Here's a vintage girdle ad with a promise of looking younger and sizes smaller!