The recent passing of Joey Bishop marked the last of Frank Sinatra's Rat Pack. Sinatra, Sammy Davis, Dean Martin, Peter Lawford and Bishop were a talented and raffishly stylish group that defined Las Vegas for a decade or more.
Sinatra and Lawford in particular were always well dressed, with a bit of silk in their jacket pockets.
One of the best ways to catch a glimpse of the Rat Pack is to view the original (1960) Ocean's Eleven. The Pack played themselves while they played their parts. And they did it with, for want of a better word, class.