In Wrath of the Lich King it is item level 213 and requires level 80. In MoP Classic it is item level 213, requires level 80 and sells to vendors for 1c.
Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Deadly Gladiator's Wyrmhide Robes Compares
Who It Suits
Leather is the armor type Demon Hunter, Druid, Monk and Rogue wear. With Agility or Intellect, Deadly Gladiator's Wyrmhide Robes 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 Deadly Gladiator's Wyrmhide Robes (item level 35) in item level among Armor > Leather, Chest slot, from item level 31 to 39.
Items Numbered Next to Deadly Gladiator's Wyrmhide Robes
Blizzard numbers items as they are created, so the named items next to ID 41315 (41309 to 41321) were usually added in the same batch as Deadly Gladiator's Wyrmhide Robes: the same quest line, zone, vendor or reward set.