You need the knits, the double knits....
What?? Eddie are you kidding?? I got you sixty tailors...
I'm coming over shortly,
because I am a portly;
you promised you could fit me in a fifty dollar suit...
Eddie are you kidding,
I saw you on my TV...
http://www.youtube.com/watch?v=G8lDCXv6Fr4 music starts at 0:58 ... if you've never heard it, it is worth a listen. Flo and Eddie..
I guess it is according to what you are doing. Some people are dead serious about this sort of thing and will ban you from their peosonal space forever for a style error involving this sort of jacket... seriously. I have no idea...