Toughened hide of a wild boar. Can enhance all armor.
Boar Hide is dropped by boars in Act I.
One of the least useful armor enhancements in the old Titan Quest, one of the more valuable in the Anniversary Edition due to the added Bleeding resistance bonus, which is difficult to acquire and is important on at least two bosses on Epic and Legendary difficulty, Manticore and Yaoguai. One of the possible bonuses for completion is another chunk of Bleeding resistance, which further increases the charm's value. The best farming place for Boar Hide are arguably the Ambrossos Farmlands with lots of boars and a rebirth fountain in the nearby Village of Ambrossos.
The stat values on this page are correct for the Anniversary Edition. Boar Hide in old Titan Quest: Immortal Throne has higher armor bonuses, but does not provide Bleeding resistance. The completion bonuses stay the same with the exception of the Bleeding resistance bonus, exclusive to the Anniversary Edition.