The mistake seen most often on a suit jacket is not in the fabric or the color, but in the bottom button fastened tight. The jacket pulls into an X-shaped crease, the fronts flare open, and the wearer looks as if he is trying to squeeze himself into the jacket. The button style of a suit decides how the jacket hugs the body, how the lapel opens, and even the rule for buttoning. Choose the right style from the start and you have less to think about every time you wear it.
Quick answer
The five suit jacket button styles worth choosing are single-button, two-button single-breasted, 3-roll-2, double-breasted 4x2 and double-breasted 6x2. Two buttons suit most builds and the office; a single button is neat and suits the evening; 3-roll-2 is classic; double-breasted is for tall men with broad shoulders.
1. Single button: neat, elegant, for the evening
A single-button jacket has just one button at the waist or slightly above, with a long lapel opening that makes a deep Y line across the chest. The vertical line makes the torso look slim and long, so this style is familiar in tuxedos, formalwear and women's suits. In our collection, women's single-button jackets such as the Women's Navy Suit Jacket with White Stripes, Single Button SNU-214 show this neatness clearly.
It suits evening parties, weddings, events, and slim builds. Button it when standing, unbutton it when seated.
Note: with a deep lapel opening, the shirt and tie show more, so the fabric and shirt color need care. Those with a larger waistline easily strain the button, because a single button carries the whole waist.
2. Two-button single-breasted: the office standard
This is the "default" button style of the men's suit, and for good reason. Two buttons create a moderate lapel line and a balanced jacket body, suiting both notch and peak lapels. The buttoning rule is very simple: fasten only the top button and leave the bottom one open. The jacket is cut to be worn that way; buttoning both is wrong for the cut.
It suits every build and almost every occasion: interviews, meetings, daytime weddings, company parties. A button placed a little high makes the legs look longer, while one placed low lengthens the jacket body, suiting tall men.
Note: if this is your first suit, two buttons is the lowest-risk starting point for both your build and the occasion.
3. 3-roll-2: classic American collegiate style
It is a three-button jacket, but the lapel rolls over the top button so that only the middle button is fastened, and sometimes the top one too. The old rule is remembered as a saying: the top button "sometimes", the middle "always", the bottom "never". The lapel is soft and rolls naturally rather than being pressed flat, giving a relaxed, composed feel.
It suits those who like a classic look, men of medium-to-tall height, paired with an American cut or with tweed and flannel. This style is also the place to choose brown horn buttons to match the mood.
Note: three buttons set low can make the jacket look old. Shorter men should choose two buttons, or a 3-roll-2 with the middle button set high.
4. Double-breasted 4x2: trim, modern
"4x2" means four buttons, two of them for fastening. Two rows of buttons thicken the jacket body horizontally, giving a commanding feel, but the four-button version is short and so lighter and more modern than the six-button one. It suits tall, slim men with medium-to-broad shoulders who favor a style with an accent.
How to button: fasten the inner button first to hold the front, then the outer button. A double-breasted jacket is cut to close fully, so button it when standing and unbutton it only when sitting.
Note: shorter men or those with a belly easily get "swallowed" by a double-breasted jacket, especially in thick fabric. If you like this style, choose a thinner fabric, a medium lapel and have the tailor take the jacket body in.
5. Double-breasted 6x2: commanding, ceremonial
Six buttons, two to fasten. The six-button version has a wide peak lapel, a long row of buttons, and a distinctly ceremonial feel. It is the style of businessmen who like authority, of weddings and of occasions that call for a formal stance. For more on reading 6x2, 6x1 and 4x2, see the article men's 6-button suit.
It suits tall men with a thick chest and broad shoulders. It pairs with a medium-width tie, a white pocket square, and lace-up leather shoes.
Note: this style needs room for the body, so the tailor must cut very precisely; if it is off by a few millimeters, the fronts crease because the buttons pull. Grooms who like double-breasted can read about the groom's 6-button suit.
Quick summary table
| Button style | Suits | Worth remembering |
|---|---|---|
| Single button | Evening, women's suits, slim builds | Deep lapel opening, buttoned when standing; those with a larger waist should think twice |
| Two-button single-breasted | Every build, the office | Fasten only the top button, leave the bottom one open |
| 3-roll-2 | Tall men, those who like the classic look | Fasten the middle button; shorter men easily look older |
| Double-breasted 4x2 | Tall, slim men who like an accent | Trim, modern; fasten the inner button first |
| Double-breasted 6x2 | Businessmen, weddings | Commanding; needs precise cutting |
Tips from Mon Amie's master tailors
- The bottom button of a single-breasted jacket is always left open. This is part of how the jacket is cut, not a matter of habit.
- Button color should be close to the fabric color: brown horn for grey and muted navy, black for a tuxedo. Metal buttons suit only a blazer, and rarely a business suit.
- A high-end made-to-measure suit often has working cuff buttons. If you like this detail, tell your stylist when you are measured.
- A good button is sewn on with a shank so the fabric lies flat when buttoned. Check it yourself by buttoning up and seeing whether the fabric around the button puckers or pulls.
- Try buttoning while standing, then raise your arms, then sit. A button that only looks good when you stand straight is not the button for you.
Frequently asked questions
Which button style suits shorter men?
A two-button or single-button jacket, with the button set a little above the waist so the legs look longer. Avoid low-set three buttons and the wide-lapel double-breasted 6x2, because they easily make the wearer look shorter.
Do I need to button my jacket when sitting?
No. Button it when you stand up or step up to the table, and unbutton it when you sit so the fronts do not fold and crease. With a double-breasted jacket, also undo the outer button when you sit.
Which button style goes with which lapel?
Double-breasted usually goes with a peak lapel, a two-button single-breasted works with both notch and peak lapels, and a single button suits the shawl lapel of a tuxedo. You can read more in what is a lapel, and how to choose a suit lapel.
Which button style is in fashion for a young man's suit?
Two buttons with trim shoulders and a moderately short jacket body is a style that lasts through the seasons, while double-breasted 4x2 gives a fresher accent. You can see all the styles in men's suit styles: 12 cuts.
Choosing a button style is really choosing for your build
The button style is not mere decoration; it is how the jacket body gets divided into proportions. If you are not sure, you can try out styles on the design page and then book a measuring appointment so a stylist can let you try each style on your own body. Grooms who want a full-service consultation can see the Groom Styling service.