Yeah, a "vest" is probably the closest thing there is. I'm guessing, thuogh, that there's some super-cool term for it that only the designers know, though.

T-shirts and jeans for me. Mostly tank-tops, though. I have too many. I wear sweaters a lot too, because I'm always cold.

Coolest outfit I've seen in media? Hmm. I think Spike's outfit from Cowboy Bebop is pretty spiffy. xD The clothes in LotR are also really nice looking.