Hades' Robes

Hades' Robes are the robes worn by Hades. People who have done lots of bad in their lives will get woven into them.

The Lightning Thief
In The Lightning Thief, Percy's ADHD makes him wonder about them, and wonder about What would someone have to do to get woven into Hades' underwear?

The Last Olympian
In The Last Olympian, Percy wins a battle against Hades. Percy grabs Hades by his robes, and Hades vanished out of them. Percy then threw it in the River Styx.