Originally Posted by Mono_Giganto
It can't really be done. Clothing is defined by a single model. If you removed the jacket, it would be removed for their special clothes as well. Not to mention that I doubt the shirt mesh continues beneath the jacket, you'd have to remodel the whole shirt.
I would say make a new item for the default clothing, it would act like clothing but actually be like armor for the specific character while the vestless and jacklet skins would take the place of where the default clothing was. And I know about that modeling thing. I asked for help on that but nobody seemed to want to. (and yes I did check the tutorials but svoshes really should have better grammar skills.)