Are there any other Old School posters who can enlighten me on how Spanx differ from the elasticized foundation garments of 40-50 years ago that were called "girdles?"
Those also came in all kinds of sizes, including ones that went all the way down the legs, as well as some called "waist cinchers" that have been dutifully reproduced, plastic replacing the whalebone formerly used for the "stays," these are very popular now, called "corset tops" and sold as fancy lingerie and clubwear.
But I am hoping someone will tell me what advances have occurred that make today's Spanx superior to the lycra girdles of yore.