In The Burning Crusade it is item level 128 and requires level 70. In Wrath of the Lich King it is item level 219 and requires level 80. In MoP Classic it is item level 128 and requires level 70.
Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Tempest-Strider Boots Compares
Who It Suits
Mail is the armor type Evoker, Hunter and Shaman wear. With Agility or Intellect, Tempest-Strider Boots suits Beast Mastery, Marksmanship and Survival Hunter; Elemental, Enhancement and Restoration Shaman; Devastation, Preservation and Augmentation Evoker.
Transmog Sets
Tempest-Strider Boots is part of the transmog set Cataclysm Regalia (Shaman only). The other 16 pieces:
Blizzard numbers items as they are created, so the named items next to ID 30066 (30061 to 30071) were usually added in the same batch as Tempest-Strider Boots: the same quest line, zone, vendor or reward set.