Read from the World of Warcraft client build files.
How Nine-Tailed Spaulders Compares
Who It Suits
Leather is the armor type Demon Hunter, Druid, Monk and Rogue wear. With Agility or Intellect, Nine-Tailed Spaulders 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
Nine-Tailed Spaulders is part of the transmog set Nine-Tail Battlegear (Rogue only). The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Nine-Tailed Spaulders Fits
Other Items Named Nine-Tailed Spaulders
5 other items in the current build are also called Nine-Tailed Spaulders. 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 95939 (95934 to 95944) were usually added in the same batch as Nine-Tailed Spaulders: the same quest line, zone, vendor or reward set.