[The armor disappears with a flash of light in the same way it came, leaving Riku standing in his normal clothes once more. It's hard to hide how pleased he is with this new development, but Terra's words make him consider.]

That sounds a lot like the coats the Organization wore. They protected you from the darkness while moving between worlds.

[It's a little different--he was traveling through Corridors of Darkness rather than the Lanes Between--but it's the same idea.]

At any rate, it's even better than I originally thought. [He smiles.] Thanks for letting me know.