Hanes and the Sexy Librarian

Here is a vintage Hanes Mystrece stockings ad which features the sexy librarian look:

The full text of the ad reads:

You can read about women who are unforgettable, disarming, and a not-so-quiet sensation,
or, become one by wearing new MYSTRECE. If you dipped your legs in liquid chiffon, you’d get the fit, the look, the utter cling of MYSTRECE. And for pennies more, you get that Hanes exclusive: No run can grow past the nude heel and demi toe.

How exactly does wearing Mystrece, “dipping your legs in liquid chiffon”, make a woman unforgettable, disarming and a not-so-quiet sensation?