I found Katie Morosky's (Barbra Streisand) wardrobe quite inspiring, especially the colour palette of camel, taupe, navy, white, red, etc. etc. My favourite scene was where Katie and Hubbell (Robert Redford) run into each other outside a hotel where Katie is protesting against the nuclear bomb. I have never seen upturned collars look so chic! Plus who doesn't love Robert Redford in his heyday?
As I was googling images from the film I came across this highly amusing tumblr: What Would Babs Wear