Impossible glamour

idk, Seer's Cowl comes close. IIRC, it's one of a few two-slot pieces, if not the only one, that has a built-in mask.

I really wish this was possible. And yes, Seer's Cowl has a mask in it, but it covers only the eyes. Plus, it's the signature clothing of the Lambs of Dalamud, hard to RP as anything else with it.