In Wrath of the Lich King it is item level 238, requires level 80 and sells to vendors for 16g 32s 51c. In MoP Classic it is item level 245, requires level 80 and sells to vendors for 16g 32s 51c.
In the Appearances collection, Cuirass of Flowing Elements is listed as Boss Drop. Appearance ID: 11853. 14 other items wear the same appearance; 12 of them are listed here.
Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Cuirass of Flowing Elements Compares
Who It Suits
Mail is the armor type Evoker, Hunter and Shaman wear. With Agility or Intellect, Cuirass of Flowing Elements suits Beast Mastery, Marksmanship and Survival Hunter; Elemental, Enhancement and Restoration Shaman; Devastation, Preservation and Augmentation Evoker.
Transmog Sets
Cuirass of Flowing Elements is part of the transmog set Thrall's Garb (Shaman only). The other 16 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Cuirass of Flowing Elements Fits
Other Items Named Cuirass of Flowing Elements
2 other items in the current build are also called Cuirass of Flowing Elements. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Items Numbered Next to Cuirass of Flowing Elements
Blizzard numbers items as they are created, so the named items next to ID 47325 (47320 to 47330) were usually added in the same batch as Cuirass of Flowing Elements: the same quest line, zone, vendor or reward set.