Single- vs double-breasted tuxedo

A single-breasted tuxedo is the flexible, easy-to-wear option that suits most builds. A double-breasted tuxedo is more imposing and needs no cummerbund or waistcoat, but it demands precise fit and must stay buttoned when you stand. If you are making just one tuxedo, single-breasted is the lower-risk choice.

Single-breasted: flexible and easy to wear

A single-breasted jacket has one column of buttons down the middle, usually one button on a tuxedo (sometimes two). The fronts overlap very little, drawing a clean vertical line from chest to waist. You can button it or leave it open when seated, and wear it with a cummerbund, a waistcoat, or neither, depending on the occasion.

Its great advantage is how readily it fits: adjusting the shoulders, chest and waist is usually enough. That is why it suits builds from slim to fuller, and it is the most common cut of tuxedo. You can browse single-breasted designs in the tuxedo collection.

Double-breasted: imposing and serious

A double-breasted jacket has two parallel rows of buttons and the fronts overlap considerably. The usual tuxedo version has six buttons in two rows, with two to fasten (a "6 on 2"). The lapels are generally peak or shawl, faced in satin. The cut builds a solid chest and strong shoulders.

TUX-033 is a clear example: a black double-breasted six-button tuxedo with wide black satin peak lapels and jetted hip pockets. Double-breasted suits a man who wants a commanding presence at a wedding, an anniversary dinner or an event with a stage. See also our page on the black double-breasted tuxedo with peak lapels.

Double-breasted needs no cummerbund

Because the fronts overlap and stay closed, the waistband and the shirt are already hidden. A cummerbund or waistcoat becomes unnecessary, even bulky. Many men like that, since the outfit is tidier: shirt, bow tie, braided trousers and patent shoes are all you need.

With a single-breasted jacket, if you leave it open the trouser waist shows, which is why black tie convention calls for a waistcoat or cummerbund. Our guide to the three-piece tuxedo: waistcoat or cummerbund gives the detail.

Double-breasted must always be buttoned

This is the key rule: a double-breasted jacket stays buttoned when you stand, usually the inner button and one outer button. Left open, the fronts flap and lose their shape. When seated you may undo the outer button for comfort, but button up again as you rise.

The consequence is that this style is fussier about build. You need a balanced chest, waist and stance, or the cloth will pull or hang loose around the fastening. Our page on short men in a double-breasted tuxedo addresses shorter builds.

Comparison by build and occasion

Criterion	Single-breasted	Double-breasted
Formality	High, flexible	High, imposing
Ease of fit	Fits most builds easily	Needs precise bespoke fitting
Builds that suit	Any; easier for fuller men	Tall, slim to athletic; shorter men need care with proportion
Cummerbund or waistcoat	Needed (or optional)	Not needed
When seated	Open or buttoned as you wish	Outer button may be undone
Occasions	Weddings, galas, evening events, formal dinners	Weddings, award ceremonies, anniversaries, stage events
Staying power	Little affected by trends	Fine, but the style is more distinct

How to choose

If it is your first tuxedo or your only one, a single-breasted jacket with a moderate lapel is the safe choice and covers many occasions. If you already own a classic and want a second that makes more of an impression, or you have the build and like the imposing look, double-breasted is worth trying.

Men with a fuller stomach should think carefully before choosing double-breasted, as the overlap can emphasise the midsection if the cut is not right. Tall, slender men often benefit, because the width of the front brings balance.

How Mon Amie can help

The surest way to decide is to wear both. Book a fitting at the showroom and a specialist will measure you and let you compare directly on your own body.