How about this for a flight jacket. Its basically a the rain coat in an 'open' version that I think I downloaded from MORPHWORLD (I'll check when I locate the zip). It looked like it would make a flight jacket so I played around, truncated it and remapped it then stuck on some 'sheepskin' textures. You seem to have some modelling skills so I'm sure you can improve on my version but the raincoat looks like a good place to start. If you don't fancy doing it yourself, I'd be glad to do it and send you a copy - after I've checked the copyright ;-(