Breastplate of Bloodthirst

The Breastplate of Bloodthirst is a leather chest piece, originally created for the legendary assassin, Garona Halforcen. Garona's armor became her trademark, as she owns the only one ever made. However, by using the Pristine Hide of the Beast as a base, Malyfous Darkhammer can recreate a satisfactory replica for players who bring him the necessary components.

Source
This item is a quest reward from Breastplate of Bloodthirst (quest).