The Imperial Robe is a socializing tool in the Captain Outfitter.
A gray cape with a collar.
The Imperial Robe enables the Radiant Pose ability, which replaces the ordinary Pose. This ability is superior to the ordinary Pose, requires no energy, and cannot be upgraded.
The Imperial Robe is useful in social adventures, especially for captains with a poor ordinary pose ability. It is also good for captains with no energy to spare. However, if captains have plenty of energy, and are up against creatures very tough to impress, then the upgradable Fettipopper would probably be a better option.