How to wear a cummerbund correctly

Wearing a cummerbund correctly comes down to four points: the pleats face up, the band sits at the natural waist and covers the trouser band and the tail of the shirt, the fastening is at the centre back, and the size follows your waist measurement rather than your trouser size. Get those four right and the cummerbund nearly disappears into the figure, leaving only a clean horizontal line below the jacket front.

Pleats facing up

A cummerbund is folded into horizontal pleats. By convention they open upward, so the folds form small pockets that face your chest. Looking down, you should see the openings turned toward you.

The reason usually given is that the pockets once held theatre tickets, or caught crumbs at a seated dinner. That is an anecdote, and how true it is remains unclear. What is certain is that today it is simply the convention: pleats facing down read as a cummerbund worn upside down. For the origin of the garment itself, see where the cummerbund comes from, which traces it to the Indian kamarband.

Position: natural waist, over the trouser band

The band sits at the natural waist, around the navel or a little above. Its lower edge must cover the trouser band, and its upper edge supports the line of the shirt. This is the whole purpose: to hide the meeting point of trousers and shirt, where a gap appears when you raise an arm, sit down or open the jacket.

That is why a cummerbund asks for a higher trouser rise. If the trousers sit on the hips, the band slides down with them or leaves a strip of white shirt showing above the waistband. Our article on high or low tuxedo trouser rise goes further.

Two more points on placement:

• Do not wear it with a waistcoat. Both cover the same junction at the waist, so wearing them together is redundant and adds bulk. Choose one, as discussed in three-piece tuxedo: waistcoat or cummerbund.
• It lives under the jacket. With the jacket buttoned the cummerbund hardly shows; it appears when the jacket comes off or opens, which is exactly why it must sit correctly.

Fastening at the back

The adjuster is at the back, usually a metal hook with a strap or a tongue buckle, much like a watch clasp. It always sits at the centre of the back, never at the front, so the front shows only clean pleated cloth.

The usual routine: put on trousers and shirt, button the shirt, bring the cummerbund around from the front to the back, fasten it and straighten the band. Practise once before the evening, because reaching behind you for a clasp is awkward if you are not used to it. After fastening, tug the pleats straight so the edges run parallel to the trouser band.

It should not be so tight that sitting is hard. Sit, breathe deeply and lean forward to see whether the band rolls or slips. If it does, adjust the clasp or change the size.

Sizing to your waist

Size is taken at the waist where the band will sit, the natural waist, not from the trouser size you normally buy. In the same man, the natural waist often differs from a low-rise trouser size by several centimetres.

• An adjustable strap forgives a small difference, but it does not replace choosing the right size.
• A wider band suits a long torso; a narrower one suits a shorter man or a shorter body. If the band is too wide, it rides up toward the chest when you sit.
• A man with a fuller stomach should choose a dark band, matched to the trousers and of moderate width, so the horizontal line does not draw attention to the stomach.
• In made-to-measure, the cummerbund is cut to your actual measurements and made in the same satin as the lapel, so band, lapel and bow tie match under the lights.

A real model for reference

TUX-054 shows the cummerbund clearly. It is a tuxedo with continuous satin shawl lapels and a single button, with a pleated satin cummerbund across the stomach in place of a waistcoat, worn with a pleated-front shirt, a satin bow tie and a white pocket square. The cummerbund, bow tie and lapel share the same satin, which is why the three details agree.

Common mistakes

• Pleats facing down.
• The band sitting on the hips, exposing shirt above it.
• The clasp at the front of the stomach.
• Wearing it together with a waistcoat.
• Sizing from the trouser size, giving a band that bunches when loose or rolls when tight.

From the Mon Amie workroom

A cummerbund only looks right with trousers cut to the correct rise, so our advisors measure the two together. You can book a fitting at a showroom to try the band in front of a mirror, checking the pleats, the clasp and how it feels when you sit before you commit to the suit.