Read from the World of Warcraft client build files.
How Felreaper Spaulders Compares
Who It Suits
Leather is the armor type Demon Hunter, Druid, Monk and Rogue wear. With Agility or Intellect, Felreaper 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
Felreaper Spaulders is part of the transmog set Felreaper Vestments (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 Felreaper Spaulders Fits
Other Items Named Felreaper Spaulders
1 other item in the current build is also called Felreaper 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 247157 (247152 to 247162) were usually added in the same batch as Felreaper Spaulders: the same quest line, zone, vendor or reward set.