In The Acolyte, the Cortosis armor’s abilities are showcased through the Sith Lord’s gauntlet and cortosis helmet, which are integral to their combat strategy.

If you’ve fallen in love with the Sith Armor and want to keep it, there's a way to do that. You’ll have to equip the outfit on Carth, leave him at the Hideout and then go to the Hidden Bek base.

In the book's final chapter, she makes a rather bold claim in support of George Lucas's Star Wars: Episode III - Revenge of the Sith, calling it the greatest work of art in recent memory.