This item is crafted with Blacksmithing (300); taught by , a world drop.
Due to the price and rarity of the Arcanite Bars required to craft this, very few people wanted to purchase or have it crafted. The armor itself was very good but the expenses could be sold and used to purchase something better and cheaper.
At some point, armorsmithing was removed as a requirement to learn the recipe for this.
Patches and hotfixes
- Hotfix (2016-07-27): "Invulnerable Mail was previously and erroneously converted from mail to plate, and has now been converted back to mail, as it's intended to be used by mail classes."
- Patch 7.0.3 (2016-07-19): Change from Mail to Plate. Bonus armor changed to Versatility.
- Patch 6.0.2 (2014-10-14): Stat squish.
- Patch 4.0.1 (2010-10-12): No longer increases Defense rating.
- Patch 1.7.0 (2005-09-22): Invulnerable Mail changed to a lower duration effect, but your own melee swings will not interrupt the invulnerability.