Warped Leather Vest

Dropped by 4

• Longsnout level 11 0.3% 119
• Gruff Swiftbite level 12 0.2% 100
• Bramblethorn Quilboar level 16 0.1% 60979
• Great Goretusk level 17 0.1% 547

Dropped by, from a shared table 40+

• Baron Longshore level 16 3467
• Blackwood Totemic level 18 2169
• Blackwood Warrior level 17 2168
• Brawler level 16 1207
• Carnivous the Breaker level 16 2186
• Dalaran Brewmaster level 16 3577
• Dalaran Mage level 16 1914
• Deathstalker Faerleia level 18 2058
• Defias Conjurer level 16 619
• Defias Digger level 16 824
• Defias Henchman level 16 594
• Defias Highwayman level 18 122
• Defias Knuckleduster level 17 449
• Defias Pathstalker level 16 121
• Defias Raider level 18 6180
• Expedition Sailor level 16 60895
• Expedition Soldier level 17 60897
• Gilthares Firebough level 17 3465
• Gnasher level 16 1206
• Grawmug level 17 1205
• Greymist Warrior level 16 2205
• Grimtotem Brute level 16 11912
• Grimtotem Sorcerer level 16 11913
• Hand of Ravenclaw level 16 1870
• Kolkar Marauder level 16 3275
• Kolkar Stormseer level 16 9523
• Moonrage Bloodhowler level 16 1924
• Murloc Warrior level 16 171
• Oasis Snapjaw level 16 3461
• Pesterhide Forager level 16 91735
• Redridge Mongrel level 16 423
• Riverpaw Bandit level 17 452
• Riverpaw Brute level 16 124
• Sergeant Brashclaw level 18 506
• Shade Mage level 17 61499
• Stonesplinter Bonesnapper level 16 1164
• Stonesplinter Shaman level 16 1197
• Stormscale Siren level 17 2180
• Twilight Thug level 18 2339
• Venture Co. Mercenary level 16 3282

Only the first 40 are listed.

Found in 4

• Alliance Chest 0.6% 111095
• Battered Chest 0.6% 2849
• Battered Chest 0.4% 106319
• Hidden Strongbox 0.4% 2039