In Wrath of the Lich King it is item level 272 and requires level 80. In MoP Classic it is item level 251, 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 Lasherweave Legplates Compares
Who It Suits
Leather is the armor type Demon Hunter, Druid, Monk and Rogue wear. With Agility or Intellect, Lasherweave Legplates 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
Lasherweave Legplates is part of the transmog set Lasherweave Battlegear (Druid only). The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Lasherweave Legplates Fits
Other Items Named Lasherweave Legplates
1 other item in the current build is also called Lasherweave Legplates. 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 50109 (50098 to 50117) were usually added in the same batch as Lasherweave Legplates: the same quest line, zone, vendor or reward set.