Go in-game, then type /claim...your boots will be listed as a claimable item, along with a couple of other things.
One thing, tho....be sure you claim the boots on the toon you plan as your main, as they are no-drop, no-trade and must be attuned to your toon to be useful. You cannot put them on another toon in any fashion. You cannot put them in your shared bank for use by another toon. In other words, once they're claimed, that's the end of it.