Read from the World of Warcraft client build files.
How Verdant Gladiator's Silk Cap Compares
Who It Suits
Cloth is the armor type Mage, Priest and Warlock wear. With Intellect, Verdant Gladiator's Silk Cap suits Discipline, Holy and Shadow Priest; Arcane, Fire and Frost Mage; Affliction, Demonology and Destruction Warlock.
Transmog Sets
Verdant Gladiator's Silk Cap is part of the transmog set Verdant Gladiator's Silk Armor (Mage only), which the Appearances collection lists in 3 versions. The other 16 pieces:
Items Numbered Next to Verdant Gladiator's Silk Cap
Blizzard numbers items as they are created, so the named items next to ID 209076 (209071 to 209081) were usually added in the same batch as Verdant Gladiator's Silk Cap: the same quest line, zone, vendor or reward set.