Through the following decades, several factors caused more women to choose panty girdles as their foundation garment of choice.
You'll find that some bustiers are rather short in the torso, and that means they won't flatter underneath clothes unless layered with another foundation garment.
An open bottom girdle is a unique piece today--very few people wear one regularly--but it is a genius shaping item and a rather sophisticated foundation garment.
A popular type of foundation garment today, panty girdles have undergone many changes since the first ones, made of perforated rubber, were introduced into the fashion world in the 1930s.