If you’re going to rock a custom suit, make sure to follow the suit button rules. There is a right way and a wrong way to button a blazer or suit coat. If you don’t know when to button up or leave it open, you are advertising that you don’t know how to wear a suit.
So what is the protocol for buttoning a suit coat? Here are the key guidelines to follow.
5 Suit Button Rules
2. One-Button Suits and Blazers: You’ve only one button to worry about so this one is a no-brainer. Unbutton it when you are seated and button up when you are standing.
3. Two-button Suits and Blazers: Stick to the top. Don’t button both buttons, only fasten the top.
4. Three-button Suits and Blazers: The middle button should always be buttoned up. You can fasten the top button as well, but never all three!