For most people, "button-down" and "button-up" are interchangeable, but they're actually not the same item of clothing.

Learn more! Some days, pants aren’t the move, and that’s where button-down dresses come in. They’re more structured than T-shirt styles and a bit more polished than a breezy maxi ...

A well-made button-down shirt is one of them ... Plus, a top like this can even double as a dress. See, I told you button-downs can work for formal occasions when styled the right way.