Read from the World of Warcraft client build files.
How Netherfiend Waistband Compares
Who It Suits
Leather is the armor type Demon Hunter, Druid, Monk and Rogue wear. With Agility or Intellect, Netherfiend Waistband suits Assassination, Outlaw and Subtlety Rogue; Brewmaster, Mistweaver and Windwalker Monk; Balance, Feral, Guardian and Restoration Druid; Havoc, Vengeance and Devourer Demon Hunter.
Similar Items
The 10 items nearest to Netherfiend Waistband (item level 13) in item level among Armor > Leather, Waist slot, from item level 9 to 20.
Blizzard numbers items as they are created, so the named items next to ID 240559 (240554 to 240564) were usually added in the same batch as Netherfiend Waistband: the same quest line, zone, vendor or reward set.