Ah, the cardigan: your granny's cozy go-to used to be available year-round, but in limited quantities and colors. It was considered the sartorial equivalent of flossing: necessary, but not glamorous.
"The cardigan used to be something to keep you warm in the work place," explains Teri Agins, who covered the fashion industry for the Wall Street Journal for years. "It was not really an accessory you left on—unless you wore it as part of a twin set."
That look, sweater upon sweater, was considered too prim for a lot of young women. It was their mother's look.