Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Tranquil Bough Vest Compares
Who It Suits
Leather is the armor type Demon Hunter, Druid, Monk and Rogue wear. With Agility or Intellect, Tranquil Bough Vest suits Assassination, Outlaw and Subtlety Rogue; Brewmaster, Mistweaver and Windwalker Monk; Balance, Feral, Guardian and Restoration Druid; Havoc, Vengeance and Devourer Demon Hunter.
Similar Items
The 10 items nearest to Tranquil Bough Vest (item level 50) in item level among Armor > Leather, Chest slot, from item level 39 to 60.
Blizzard numbers items as they are created, so the named items next to ID 139071 (139066 to 139076) were usually added in the same batch as Tranquil Bough Vest: the same quest line, zone, vendor or reward set.