He is a fancy Professor- bright jacket, bright cashmere sweater, bright briefcase. Also, black and white kitties… so graphic.
He carries his briefcase by having a little hook up his cuff which connects to a loop on the briefcase handle.
I remember when I was a kid, a flowing scarf like that indicated a Hollywood mogul or a flying ace pilot. This kitty is more on the Hollywood side, I think. Below you can see his fancy vest/waistcoat. The jacket, the vest, and the messenger bag, all have antique buttons. Button <3