@depglass
I'm from the girdle generation 
Like you, rail thin, but...had to wear it to hold up stockings. No pantyhose. Struggling in and out of that girdle during gym class. What a headache! So hot and uncomfortable.
Garter belts were also popular.
My girlfriend wore a long-line corset at her wedding and nearly passed out in the heat.
When pantyhose came around, we were relieved.