I get the feeling you'll only be able to do it through NE and they'll charge you mad dough.
probably end up being less money if you just bought a new one, unless we're talking some limited edition or sold out stuff, which is a different story.
however, I need this too man.
the underbrim of one of my yankee fitteds is falling off because of stiching tears.
it's like my favorite hat and no one sells it anymore.