This item is acquired in-game. See its sources below.
A Rare Leather Shoulder, item level 44, binds when picked up.
First seen in build 12.0.7.68887 (Midnight (patch 12.0.7)).
In the Appearances collection, Gargantuan Mantle is listed as World Drop. Appearance ID: 26590. 7 other items wear the same appearance:
Read from the World of Warcraft client build files.
Leather is the armor type Demon Hunter, Druid, Monk and Rogue wear. With Agility or Intellect, Gargantuan Mantle suits Assassination, Outlaw and Subtlety Rogue; Brewmaster, Mistweaver and Windwalker Monk; Balance, Feral, Guardian and Restoration Druid; Havoc, Vengeance and Devourer Demon Hunter.
Gargantuan Mantle is part of the transmog set Haustvelt Leathers (Rogue, Monk, Druid and Demon Hunter only). The other 16 pieces:
Haustvelt Bindings
Haustvelt Boots
Haustvelt Britches
Haustvelt Gloves
Haustvelt Hood
Haustvelt JerkinHaustvelt Shoulders
Haustvelt WaistbandDuskbat Exterminator's TreadsRunesworn CrownRunesworn BreechesThorignir Striker ShoulderguardsHumming Stormwing WrapMatriarch-Hide LegguardsEbon Stalker's BootsBoomer's Utility BeltBuilt from the World of Warcraft client build files and recorded Auction House snapshots.
Gargantuan Mantle uses icon file 1115108, which 43 other items also use. The 6 closest by item ID:
Helbreaker Epaulets ID 140619 · Armor - Leather · item level 44Felstalking Shoulders ID 140615 · Armor - Leather · item level 44Gryphon Rider's Shoulderpads ID 139950 · Armor - Leather · item level 44Dread-Rider Shoulders ID 139948 · Armor - Leather · item level 44Rivermane Shoulders ID 139110 · Armor - Leather · item level 50Starlance Shoulderpads ID 138822 · Armor - Leather · item level 44Blizzard numbers items as they are created, so the named items next to ID 140686 (140680 to 140691) were usually added in the same batch as Gargantuan Mantle: the same quest line, zone, vendor or reward set.
Lysander's Lovindle Bracers ID 140680 · Armor - Mail · item level 44 "These light chain bracers give just the right amount of protection on a midsummer's eve."Jak's Gloves ID 140681 · Armor - Leather · item level 44
Zenobia's Handwraps ID 140682 · Armor - Cloth · item level 44Darkful's Mitts ID 140683 · Armor - Cloth · item level 44
Enchanted Sunrunner Kidney ID 140685 · Consumable
Unholy Runeblade ID 140687 · Weapon - Two-Handed Sword · item level 44
Staff of Astral Alignment ID 140688 · Weapon - Staff · item level 44
Pike of Feral Rage ID 140689 · Weapon - Polearm · item level 44
Restorative Ashwood Staff ID 140690 · Weapon - Staff · item level 44
Packmaster's Rifle ID 140691 · Weapon - Gun · item level 44The raw ItemSparse values for item 140686 in the current client build.
Read from the World of Warcraft client build files: Item, ItemSparse, Lock, Holidays, AreaTable and CollectableSourceVendor.
TheWoWDB