The Anatomy of a Suit: Every Detail Explained

Why Understanding Suit Details Matters

Whether you are buying your first bespoke suit or refining an existing wardrobe, knowing what each part of a suit is called — and what it does — puts you in control of every decision. This guide walks through the jacket and trouser from top to bottom, explaining each element clearly so you can make informed choices when ordering.

The Jacket: Top to Bottom

Collar

The collar sits at the back of the neck and connects the jacket to the shirt collar beneath. In a well-fitted jacket, the shirt collar should show approximately 1–1.5 cm above the jacket collar. The collar should lie flat against the back of the neck with no gaping. Getting this right is one of the hallmarks of precise bespoke work.

Lapels

The lapels are the folded fabric panels that run from the collar down to the top button. They come in three main styles:

• Notch lapel: The most common style — a notch is cut where the collar meets the lapel. Versatile and appropriate for business and smart-casual occasions.
• Peak lapel: The lapel points upward and outward past the collar seam. More formal and assertive. Standard on double-breasted jackets; increasingly common on single-breasted formal suits.
• Shawl collar: A single continuous curve with no notch or peak. Used almost exclusively on dinner jackets.

Lapel width should be in proportion to your tie width and your frame. Wider lapels suit broader shoulders; narrower lapels suit a slimmer silhouette.

Gorge Line

The gorge is the seam where the collar and lapel meet — the point of the notch or peak. Its height is a significant style detail. A high gorge (close to the shoulder) looks contemporary and elongates the chest. A lower gorge is more traditional. In bespoke tailoring, gorge height is fully adjustable.

Chest and Breast Pocket

The breast pocket sits on the left chest. It is designed for a pocket square — not for pens, phones, or glasses (those distort the chest line). A pocket square in the breast pocket is one of the simplest ways to add personality to a suit without changing the garment itself.

Buttons and Fastening

Single-breasted jackets come with one, two, or three buttons. Two-button is the most versatile and widely worn. When buttoning: always fasten the top button of a two-button jacket; never the bottom. On a three-button jacket, fasten the middle button only, or the top two. The bottom button on any jacket is purely decorative and is never fastened.

Double-breasted jackets have multiple button columns. All visible buttons are fastened when standing.

Hip (Side) Pockets

The two pockets at hip level come in several styles:

• Jetted (besom): A clean, minimal slit edged with fabric. The most formal option — standard on dinner jackets.
• Flapped: A jetted pocket with a fabric flap covering the opening. The most common choice on lounge suits. The flap can be tucked in for a cleaner look.
• Patch: A pocket sewn onto the outside of the jacket. More casual — common on sports coats and summer suits.

Ticket Pocket

A small, narrow pocket positioned above the right hip pocket. Originally used for train tickets. Now a classic detail that signals an understanding of tailoring tradition. Optional on bespoke orders — worth adding if you appreciate the detail.

Sleeve Buttons (Kissing Buttons)

The buttons at the jacket cuff. Most off-the-rack suits have decorative buttons sewn in place — they cannot be undone. On a bespoke suit, you can specify working buttonholes — functional buttons that actually open. Worn slightly undone, they are a quiet signal of quality that those who know tailoring will recognise immediately.

"Kissing buttons" refers to buttons placed overlapping or touching at the sleeve — a classic style choice.

Lining

The interior of the jacket. Full-lined jackets have lining throughout; half-lined jackets have lining through the body but not the sleeves, which improves breathability. The lining is one of the best opportunities for personalisation in bespoke suiting — a bold colour, a personal pattern, or a monogram in the interior creates a private detail that only you see when you put the jacket on.

Canvas vs Fused Construction

The chest of a jacket is given structure by an interlining. In cheaper suits, this is a fused (glued) layer that stiffens the fabric permanently — it can bubble and delaminate with age and dry cleaning. In quality suits, a floating canvas — a layer of horsehair and wool canvas hand-padded to the chest — gives shape naturally and molds to your body over time, improving the fit the longer you wear it.

All NAAMS bespoke jackets are built with floating canvas construction.

The Trouser: Key Details

Rise

The rise is the distance from the crotch seam to the waistband. Higher rise trousers sit at the natural waist, balance the jacket proportions, and are more comfortable when seated for long periods. Lower rise trousers sit on the hip and work well with a contemporary slim cut.

Pleats

• Flat front: No pleats. Clean, modern, and streamlined. Works well on slimmer frames.
• Single pleat: One fold of fabric on each side of the fly. Adds some ease through the thigh. More traditional.
• Double pleat: Two folds on each side. Maximum comfort and a classic, full silhouette. Well-suited to fuller frames or those who prefer a more relaxed fit.

Break

The "break" is where the trouser hem meets the shoe — the fold or crease created by extra length. There are three conventional options:

• No break: Hem sits above the shoe with no fold. Contemporary and clean.
• Slight break: A minimal fold. The most versatile length — works with most shoe styles.
• Full break: A pronounced fold over the shoe. Traditional and considered correct in formal business environments.

Turn-Ups (Cuffs)

A folded cuff at the bottom of the trouser leg. Adds weight that helps the trouser hang cleanly and swing well when walking. Traditional and well-regarded in classic tailoring — not appropriate on dinner suit trousers.

Side Adjusters vs Belt Loops

Bespoke trousers traditionally have side adjusters (small fabric tabs with a buckle on either side of the waistband) rather than belt loops. This gives a cleaner front line and allows for minor adjustment without a belt. Belt loops can be added as an alternative or alongside adjusters depending on preference.

Putting It Together

Understanding these details means you can have a genuine conversation about what you want from your suit — not just accept whatever comes off the shelf. In bespoke tailoring, every one of these elements is your decision.

Visit our bespoke suits page to start building your suit from scratch — fabric, cut, construction, and every detail that makes it uniquely yours.