Read from the World of Warcraft client build files.
How Forged Gladiator's Leather Jerkin Compares
Who It Suits
Leather is the armor type Demon Hunter, Druid, Monk and Rogue wear. With Agility or Intellect, Forged Gladiator's Leather Jerkin suits Assassination, Outlaw and Subtlety Rogue; Brewmaster, Mistweaver and Windwalker Monk; Balance, Feral, Guardian and Restoration Druid; Havoc, Vengeance and Devourer Demon Hunter.
Transmog Sets
Forged Gladiator's Leather Jerkin is part of the transmog set Forged Gladiator's Leather Armor (Monk only), which the Appearances collection lists in 3 versions. The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Forged Gladiator's Leather Jerkin Fits
Other Items Named Forged Gladiator's Leather Jerkin
2 other items in the current build are also called Forged Gladiator's Leather Jerkin. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Items Numbered Next to Forged Gladiator's Leather Jerkin
Blizzard numbers items as they are created, so the named items next to ID 218556 (218551 to 218561) were usually added in the same batch as Forged Gladiator's Leather Jerkin: the same quest line, zone, vendor or reward set.