The lapel is the most visible detail on a suit jacket. Before the eye registers the fabric, the color, or the silhouette, it registers the lapel — its shape, its width, its roll. Getting the lapel right is one of the most important decisions in a suit commission, and it is one that most men wearing off-the-rack suits never actually make. The notch lapel comes standard; the others require knowing what you want.
The Three Lapel Styles
The Notch Lapel
The most common lapel in men's suiting — standard on the vast majority of business suits worldwide. The notch is the triangular gap where the collar meets the lapel facing; in a notch lapel, this gap points inward and upward at roughly a 75–80 degree angle.
Character: Versatile, professional, unfussy. The notch lapel works at every formality level from business casual to formal. It is the default choice because it is the most adaptable.
When it's correct: Business suits, business formal, cocktail attire, most professional contexts. Appropriate for weddings where black tie is not specified. The notch lapel is never wrong on a suit jacket (as opposed to a tuxedo, where it is considered incorrect).
Where to avoid it: On a tuxedo or dinner jacket. The notch lapel is a business suit detail — putting it on a tuxedo crosses a well-established line in formal menswear. This is one of those rules that is not arbitrary: the notch lapel on a tuxedo creates a visual conflict between the formal language of the jacket (silk facings, formal trousers) and the casual language of the lapel.
Width: The notch lapel width should be proportional to the jacket chest. Standard proportions place the lapel width at roughly one-third of the distance from the jacket edge to the collar — typically 3.25 to 3.75 inches at the widest point for a standard chest. Very slim lapels (under 2.5 inches) and very wide lapels (over 4 inches) both read as fashion statements rather than classic tailoring.
The Peak Lapel
The peak lapel reverses the logic of the notch: the lapel points upward and outward toward the shoulder rather than notching inward. The result is a lapel that creates visual width across the chest and adds formality and assertiveness to the jacket.
Character: Confident, formal, visually strong. The peak lapel makes a statement — it is the lapel of a man who dresses with intention. It reads as more formal than the notch and more distinctive.
When it's correct: Formal single-breasted suits (particularly for high-stakes professional settings or important social occasions), all double-breasted suits (the peak lapel is standard on double-breasted; a notch or shawl lapel on a double-breasted would be very unusual), and tuxedos where a shawl lapel would feel too soft.
Where it's unexpected: In very conservative professional settings (traditional corporate law, for example), a peak lapel on a single-breasted suit can read as slightly fashion-forward. In these contexts, the notch is safer; the peak works better where some room for personality exists.
Width: The peak lapel generally runs slightly wider than the notch at the same jacket size — the upward point extends further toward the shoulder. Specific width is set in proportion to the jacket chest and the client's preference.
The Shawl Lapel
The shawl lapel is a continuous curved lapel with no notch or peak — it flows from the collar down in a single unbroken line. It is exclusively a formal garment detail: tuxedos, dinner jackets, smoking jackets.
Character: Elegant, soft, formal. The shawl lapel has a more rounded, less aggressive character than the peak; it is the lapel of a man who wears his formality lightly. In a classic black or midnight navy tuxedo, a shawl lapel communicates sophistication without the assertiveness of the peak.
When it's correct: Black tie events, dinner parties, formal social occasions requiring a tuxedo or dinner jacket.
Where to avoid it: On a standard business suit. A shawl lapel on a business suit is an unusual and rarely successful choice — the softness of the lapel line doesn't sit naturally with the structure of a business jacket. The shawl lapel belongs in formal evening wear.
The Lapel Roll
The roll of the lapel — the curve it makes away from the jacket front — is as important as the style. A properly made lapel in a full canvas jacket rolls in a continuous curve from the top button to the gorge (where collar meets lapel). It does not fold along a crease; it curves gently away from the shirt.
This roll is set by the floating canvas beneath the lapel. The canvas is hand-padded to the lapel with hundreds of small stitches, creating the structure that allows the roll to happen naturally. A fused jacket has no floating canvas and cannot produce this roll — the lapel folds along the adhesive bond rather than rolling away from it.
The difference between a lapel that rolls and one that folds is visible from across a room once you know to look for it.
Lapel Width Over Time
Lapel width has followed fashion cycles throughout the 20th century — very wide in the 1970s, very narrow in the late 1970s and early 1980s, gradually returning to classic proportions through the 1990s and 2000s, very narrow again in the slim-fit fashion of the 2010s.
The classic proportion — lapel width at roughly one-third of the jacket front — has never looked dated because it is based on visual proportion rather than fashion trend. A jacket with classically proportioned lapels made in 1985 and one made in 2025 look correct in the same way.
At Vestium NY, lapel width is set at classic proportions scaled to the individual jacket chest — not to current fashion.
At Vestium NY
The lapel decision is made at consultation. We discuss the occasion the garment will serve, the silhouette, and the level of formality or personality appropriate — and make the lapel recommendation from there. For most business suits, a notch at classic proportions. For a tuxedo, shawl or peak based on the client's preference. For a formal suit where more presence is wanted, peak.
Explore Vestium NY's commission a suit with the right lapel.
Frequently Asked Questions
Can I have a peak lapel on a single-breasted suit?
Yes — a peak lapel on a single-breasted jacket is entirely correct and has a long history in formal tailoring. It adds formality and visual presence.
What lapel is best for a tuxedo?
Shawl or peak — both are correct and appropriate for black tie. The shawl is softer and more traditional; the peak is more assertive and structured. Neither is more correct than the other; the choice is preference.
Do lapel trends matter?
For classic tailoring, no. A lapel set at the correct proportion for the jacket will look right regardless of what fashion is doing. Extreme widths or narrow proportions date themselves.
Can I change the lapel style after the suit is made?
No — the lapel is part of the jacket's fundamental construction. Changing it after completion would require significant reconstruction. The lapel decision is final at the pattern stage.
What width lapel is right for a slim-cut jacket?
A slimmer jacket chest takes a proportionally narrower lapel. The ratio should remain constant — roughly one-third of the jacket front at the widest point — even as the absolute width decreases with the jacket size.
Work with Vestium NY. Every Vestium NY commission includes a lapel conversation.