The game's collection data lists Jinyu-Polished Boots as sold by 2 vendor NPCs in Warspear and Stormshield.
Vendor
Zone
Map
Waypoint
Other items it sells
NPC #86376
Warspear
-
-
15
NPC #86387
Stormshield
-
-
15
Vendor NPC, zone and position come from the client's collection source tables (CollectableSourceInfo and CollectableSourceVendorSparse); coordinates are the in-game map readout.
Build history
First seen in build 5.5.4.69585 (Mists of Pandaria).
Read from the World of Warcraft client build files.
How Jinyu-Polished Boots Compares
Who It Suits
Leather is the armor type Demon Hunter, Druid, Monk and Rogue wear. With Agility or Intellect, Jinyu-Polished Boots 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
Jinyu-Polished Boots is part of the transmog set Mogubreaker Battlegear (Rogue, Monk, Druid and Demon Hunter only). The other 16 pieces:
Blizzard numbers items as they are created, so the named items next to ID 92855 (92850 to 92860) were usually added in the same batch as Jinyu-Polished Boots: the same quest line, zone, vendor or reward set.