The gown on the left is a Walking Dress from November 1814, and the gown on the right is a Morning Walking Dress from November 1809.
The 1809 Morning Walking Dress is described as follows:
"A petticoat and Roman tunic of fine thin cambric, long sleeves, and high collar, interjoined and trimmed with lace; the tunic finished at the bottom with a border of fretwork. A jubilee cloak of bright amber velvet, or shaded gold-coloured sarsnet, trimmed entirely round with swansdown, and confined at the center of the throat with a rich cord and tassels of blended silk and gold. The cottager's hat, of imperial-coloured straw, tied simply under the chin with a white ribbon. Parasol, gloves, and shoes, of correspondent shades with the hat."
The 1814 Walking Dress is described as follows:
"An Italian striped sarsnet lilac-coloured dress, ornamented round the bottom with a double quilling of satin ribband; short full sleeve, trimmed to correspond; the fronts of the dress open to cross the bosom and form an open stomacher; a Vandyke French ruff, and full bordered cap to correspond. The satin straw hat, tied under the chin with a check or striped Barcelona handkerchief, crossing the crown with a small plume of ostrich feathers in the front. French shawl, a white twill, embroidered with shaded scarlet and green silks, and fancifully disposed on the figure. Gloves, Limerick or York tan, drawn over the elbow. Half-boots of York tan or pale buff kid."