Skirts in the Galactic Empire (revisited)

In many military organizations, skirts are sometimes worn as an alternative to trousers.  While Imperial uniforms usually sport pants, there are a few instances of skirts and dress-style jackets being worn instead.

In one Imperial Academy class, female academy graduates wear skirts, unlike their male counterparts (top left).[1]

Mahd Windcaller (top right) served on the Imperial Interim Ruling Council during the last days of the Empire.  Several council members wore the standard olive-colored uniform.  Windcaller's outfit, however, sported a long skirt.[2]

In Star Wars Galaxies it would seem wearing skirts in place of pants was a valid Imperial uniform choice in the game.  This group of four (bottom left) seem like standard Imperial officers.  It's quite possible your average Imperials had access to the garments.

The Empire's emigration officers (bottom center) were both members of their local police forces and the Imperial Security Bureau.  Officers on Corellia wore black skirts as part of their uniform.  The emigration personnel's outfits were influenced by the local police uniforms; therefore, it's likely emigration uniforms would exhibit regional variations.[3]

Lastly, a common uniform of the Republic Service Organization featured a black skirt (bottom right).[4]  We don't know if the RSO continued under the Empire, but considering the massive Imperial bureaucracy and perpetual war mindset, it wouldn't be surprising if an "Imperial Service Organization" existed.

Sources:
1. Heroes and Rogues
2. Crimson Empire II: Council of Blood
3. Solo: A Star Wars Story The Official Guide
4. The Clone Wars: The Valsedian Operation