Is the first row of buttons on a double breasted jacket functional

The Double Breasted Jacket

Bespoke Wrinkles (@3roll2) / X

Why do some men (even some in senior business positions) wear button-down shirts with 3+ buttons undone, so you can see a bunch of their chest hair? - Quora

Why do some men (even some in senior business positions) wear button-down shirts with 3+ buttons undone, so you can see a bunch of their chest hair? - Quora

Is the first row of buttons on a double breasted jacket functional

Elements of a Bespoke Suit: The Cut, The Single or Double Breasted

If the bottom button of a two-button jacket is meant to always be left open, then why don't clothing designers simply remove the bottom button? - Quora

How long should a suit jacket be from shoulder seam to end of cuff (not including sleeve length)? - Quora

Can you raise a jacket's armhole? - Quora

The rules and how to break them 8: Button a DB – Permanent Style

The modern double breasted suit: Italian style for 6x2, 4x2 button

What button should I close when wearing a three buttoned jacket? - Quora