Nothing helped, but i solved problem this way - i reached Hollywood location and bought new leather clothes)
No bug with this one, and no bug with heavy leather clothes from Chinatown, too.
I just want to ask other people - if you play CE 1.6 for gangrel girl, please, write here, do you have this kind of problem with Downtown-clothes skin or no, just for mod support. Maybe, it's not an only "missing" skin in CE 1.6, and if it's not mine personal bug, maybe, someone will make a patch or something.
Good night to everyone!