In the Appearances collection, Vicious Gladiator's Silk Cowl is listed as Vendor. Appearance ID: 14143. No other item uses this appearance, so it is unique to Vicious Gladiator's Silk Cowl.
Read from the World of Warcraft client build files.
How Vicious Gladiator's Silk Cowl Compares
Who It Suits
Cloth is the armor type Mage, Priest and Warlock wear. With Intellect, Vicious Gladiator's Silk Cowl suits Discipline, Holy and Shadow Priest; Arcane, Fire and Frost Mage; Affliction, Demonology and Destruction Warlock.
Transmog Sets
Vicious Gladiator's Silk Cowl is part of the transmog set Vicious Gladiator's Silk Armor (Mage only). The other 7 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Vicious Gladiator's Silk Cowl Fits
Other Items Named Vicious Gladiator's Silk Cowl
2 other items in the current build are also called Vicious Gladiator's Silk Cowl. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Items Numbered Next to Vicious Gladiator's Silk Cowl
Blizzard numbers items as they are created, so the named items next to ID 60464 (60459 to 60469) were usually added in the same batch as Vicious Gladiator's Silk Cowl: the same quest line, zone, vendor or reward set.