1811 White Dress, French. Worn under a white spotted tunic with yellow over skirt. White gloves, shoes and hat with drooping white feathers. Fashion Plate via Journal des Dames et des Modes, or Costume Parisien.

Although this is a French fashion plate, Jane Austen and her contemporaries wore a variety of tunics, spencers, and long coats  to keep warm when out and about, visiting, shopping etc. Their thin muslin dresses weren’t any protection against harsh European winters or wet English weather.