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1991 ad for Jockey For Her lingerie:
1991 ad for Wacoal lingerie:
1991 ad for Vanity Fair lingerie:
1987 ad for Underalls pantyhose:
1987 ad for L'eggs pantyhose:
1990 ad for Hanes panyhose:
Pantssuits like these became popular in the late 1960s, so I'm guessing that's when the vintage Simplicity pattern in the GIF came from.
Wish I knew who created this so I could give him/her credit.
You just don't see ads for slippers anymore. Or socks.