In 22 BBY, HoloNet News ran a piece in their "Life Section" titled "Inside Fashion: Capes are Still Hot!"
Lando Calrissian and Dooku typically wore capes as part of their outfit. GeneralGrievous sometimes wore a cape as did some of his IG-100 MagnaGuard bodyguards. Pre Vizsla, Grievous's MagnaGuards, and some Senate Guards wore a cape on one shoulder only. Sith-style armor often had capes both as a sign of superiority over inferiors, and a way of concealing themselves.