Adventurer's Tunic

Source
It has a slightly increased chance to drop from Nefarian in Blackwing Lair.

Removed sources
Other raid bosses that could previously drop this item included Gahz'ranka, Lord Kazzak, Onyxia, and Highlord Kruul.

Appearance
This item shares its appearance with Thick Draenic Vest and Grom'tor's Friend's Cousin's Tunic.

There are also several items with similar appearances:
 * Red: Blood Tiger Breastplate, Thick Silithid Chestguard, Nether Vest, Inferno Hardened Chestguard
 * Black & blue: Replica Darkmantle Tunic, Shadowprowler's Chestguard, Hauberk of Karabor, Chestguard of the Dark Stalker
 * Green: Living Breastplate
 * Slate gray: Replica Shadowcraft Tunic, Stained Shadowcraft Tunic
 * Red & black: Demon-Cured Tunic