Talking about white shirt without talking about Katharine Hepburn, is like talking about black dress without talking about Audrey Hepburn.
Audrey Hepburn does not create black dress, but she is the symbol of black dress; Katharine Hepburn does not create white shirt, but she is the symbol of white shirt.
Katharine Hepburn can wear the most feminine dresses and gowns and look feminine, but she chooses to wear pants, like Marlene Dietrich, and pairs them with white shirts.
And for decades Katharine Hepburn wears white shirts after white shirts, all classic men style white shirts, in her films as well as in her own life, all paired with pants(apart from a few occasional dresses and skirts worn for her roles on screen), like the way how a man wears his white shirts.
And she lives like a man, independently and selfishly and courageously, loving a married man without needing to know if he loves her and without needing him to leave his wife.
A man’s soul living in a woman’s body, Katharine Hepburn is more than a style icon, more than an inspiration for all the white shirt based wardrobe minimalists. She is godmother of OWWWS(Origination of woman wearing white shirt).