…in the 1800-1818 period. They wanted the “freedom to ride (a horse)” that men had, & some even dared wear boots (only when riding)! One wonders though why they kept those darn skirts…
(photos: Marie Antoinette, Queen of France 1776 (setting the military trend BEFORE it hit in the 1800’s), and a couple of museum piece 1800 Spencer jackets “a la militaire” “sans corps” (without a body))