Primal Gladiator's Silk Trousers is part of the transmog set Primal Gladiator's Silk Armor (Mage only), which the Appearances collection lists in 2 versions. The other 6 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Primal Gladiator's Silk Trousers Fits
Other Items Named Primal Gladiator's Silk Trousers
2 other items in the current build are also called Primal Gladiator's Silk Trousers. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Items Numbered Next to Primal Gladiator's Silk Trousers
Blizzard numbers items as they are created, so the named items next to ID 115877 (115872 to 115882) were usually added in the same batch as Primal Gladiator's Silk Trousers: the same quest line, zone, vendor or reward set.