I own a gold one shipped from Australia and a black one bought by my kids in the states somewhere.
Strangely enough, they are the same size, but:
The one from Australia is longer on the torso and tucks in better, but the sleeve length is shorter than its US cousin.
I don't find either hot in the summer (East Coast, US) with or without my Rochester summer jacket.
Not sure if I'd buy one again. Don't know what the kids paid for the black one, but the gold one from Australia was $99USD in 2005. They're pricey.
Regards,
Tom