1801 White Dress With Train, French. Empire style high-waisted dress under a green Spencer and carrying a gorgeous reticule,or bag, with the additional accessories of gloves and red slippers. I can picture Jane Austen and her female friends and family wearing a white Empire style dress and Spencer like this for shopping or paying visits. Fashion Plate via Journal des Dames et des Modes, or Costume Parisien.

Definition Reticule Or Bag: Purse, often with a drawstring to pull closed and usually made of cloth or covered cardboard and often decorated with beading or embroidery. Carried by a woman during the Regency period to carry all their daily necessities. in the place of pockets.
Definition Spencer: Short jacket, cropped at the waist, worn over a dress, or gown. Delicate and regency dresses provided so little protection from the cold, so over garments were essential for warmth, modesty and good health.