In The Burning Crusade it is item level 125 and requires level 70. In Wrath of the Lich King it is item level 258 and requires level 80. In MoP Classic it is item level 125 and requires level 70.
Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Windshear Boots Compares
Who It Suits
Mail is the armor type Evoker, Hunter and Shaman wear. With Agility or Intellect, Windshear Boots suits Beast Mastery, Marksmanship and Survival Hunter; Elemental, Enhancement and Restoration Shaman; Devastation, Preservation and Augmentation Evoker.
Transmog Sets
Windshear Boots is part of the transmog set Cyclone Regalia (Shaman only). The other 16 pieces:
Blizzard numbers items as they are created, so the named items next to ID 28810 (28805 to 28815) were usually added in the same batch as Windshear Boots: the same quest line, zone, vendor or reward set.