Frightening Helltreads

Frightening Helltreads are a rare-quality style item that unlocks the Demonic feet costume style when used.

Source
Frightening Helltreads can be obtained as an item drop within The Vault, an instanced minigame zone that players can enter daily. The Vault is accessed from a player's On Duty menu.

Item drop

 * The Vault

Style unlock
Upon using Frightening Helltreads, a character unlocks the Demonic feet costume style, which can be accessed at any time from the Style Window.


 * Demonic