Read from the World of Warcraft client build files.
How Demonbane Harness Compares
Who It Suits
Leather is the armor type Demon Hunter, Druid, Monk and Rogue wear. With Agility or Intellect, Demonbane Harness 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
Demonbane Harness is part of the transmog set Demonbane Armor (Demon Hunter only), which the Appearances collection lists in 4 versions. The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Demonbane Harness Fits
Other Items Named Demonbane Harness
2 other items in the current build are also called Demonbane Harness. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Blizzard numbers items as they are created, so the named items next to ID 247080 (247075 to 247085) were usually added in the same batch as Demonbane Harness: the same quest line, zone, vendor or reward set.