Apparently August 6th is International Underwear Day. (Who thinks up these things? And who has international underwear anyway? Not I. Oh wait, I think some of my knickers might be made in China.) In which case, "Hi, I'm Anne and I wear . . . (pause for dramatic effect). . . International Underwear! (And no, there will be no photo.)
Not that I'm suggesting you all rush out to purchase International Underwear of any sort — although somehow the thought of French knickers feels like a very sexy thing to do. How did the French do that — create that automatically sexy association? Because name your undies from any other country and it's —yeah? So what? But say French undies and it's ooh-la-la, or the 21st century version of.
In any case, the question here is, what would a nice Regency-era girl like Jane Austen wear under her chemise? Probably nothing. Because good girls back then didn't wear knickers. (or drawers which was the correct term for early English knickers.)