I'm starting to suspect that we may not see the Chrome Hearts cross collection on Hyunjin or Felix any time soon, because they'll have exclusive deals with Cartier and Louis Vuitton. They can probably wear some other brands when styled with them, but perhaps not anything that's a direct competitor of Cartier or Louis Vuitton??
I don't *think* Lee Know has any exclusive jewellery promo deals, but maybe?? Of course it's possible that he's somehow excluded from the Chrome Hearts cross jewellery fellowship, but that seems unlikely.