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What Is a Suit? The Basics for the Modern Gentleman

Find out what a suit is and the basics of formal menswear. Mon Amie helps gentlemen choose the right suit for every important occasion.

First published on 12/06/2026 on the former monamie.vn. Prices and promotions may have changed — our stylists will confirm current details.

Many people confuse the various terms of formal menswear, yet understanding what a suit is is the first step towards building an elegant personal style. A suit is not merely clothing; it is a symbol of maturity and of a man's standards in social interaction.

In this article

What exactly is a suit?

To answer the question what is a suit, we need to look at the uniformity of the outfit as a whole. A standard suit consists of a jacket (suit jacket) and trousers made from the same cloth, in the same colour and pattern. This coordination creates a consistent appearance that gives the wearer a polished, formal look.

The suit originated in 17th-century Europe and passed through many stages of development to become as streamlined as it is today. Wearing a suit correctly therefore shows respect for classic fashion conventions. You should distinguish a suit clearly from a blazer or a sport coat, which are separate pieces that do not come with matching trousers.

At Mon Amie, we believe that every suit is a work of art. We do not merely supply clothing; we give gentlemen confidence. What is a suit is no longer a hard question once you experience our refined made-to-measure service.

what is a suit and how high-quality cloth is measured

The components of a complete suit

A basic suit is usually called a '2-piece suit', consisting of a jacket and trousers. For added formality, however, a gentleman can choose a '3-piece suit' by adding a waistcoat underneath. The waistcoat not only keeps you warm but also helps keep the shirt flat and flatters the wearer's figure effectively.

The most important element in a suit's construction is the lapel. There are three common types: the notch lapel (standard lapel), the peak lapel (pointed, upward-sweeping lapel) and the shawl lapel (rounded shawl-collar lapel). Each type suits different situations and events. For example, the notch lapel is typically used in the office, while the peak lapel carries more authority and luxury.

Moreover, small details such as cufflinks, pockets and the vents at the back also play a key role. The modern gentleman usually prefers double vents for ease of movement and comfort when sitting. All these elements combine to create a harmonious structure for your formal suit.

Telling the common types of suit tailoring apart

When learning what a suit is, you will come across three main terms: Ready-to-wear (RTW), Made-to-measure (MTM) and Bespoke. RTW is the ready-made line cut to standard sizes, suited to people with a balanced build who need to wear it right away. Its limitation, however, is that it cannot be adjusted in depth to each body's contours.

Made-to-measure, meanwhile, is a considerable step up. The tailor works from an existing base pattern and adjusts it to your measurements. It is a popular choice because it balances cost and fit. However, if you want absolute precision, bespoke is the highest expression of the tailoring craft.

Bespoke is a fully handmade tailoring process, beginning with building a separate canvas for each client. Every smallest detail is refined by hand over several fittings. Mon Amie is proud to offer bespoke tailoring in Vietnam, giving each gentleman a deeply personalised experience.

what is a suit and the style of an elegant gentleman

How to choose a well-made suit at Mon Amie

First, pay attention to the fit at the shoulders. The shoulder of the jacket must lie flat on your real shoulder, with no excess cloth and not so tight that it ripples. Next, the sleeve length should show about 1–2 cm of shirt cuff. This rule creates a subtle layering and shows an understanding of classic style.

The fabric is also a vital factor in the quality of a suit. You should favour natural fibres such as wool, linen or silk depending on the weather. According to GQ Magazine, a 100% wool suit is a safe and durable choice for every gentleman because of its excellent breathability and its ability to hold its shape.

Finally, colour should be chosen according to purpose. Tones such as navy, charcoal or black are classic choices that never go out of fashion. They give maximum versatility, allowing you to appear confident from important meetings to elegant evening parties. Let our team of experts advise you on the most suitable high-end suit designs.

How to care for your suit so it lasts

Owning a beautiful suit is only half the journey; caring for it properly is what maintains its value. You should never dry-clean too often, because the chemicals damage natural fibres. Instead, use a soft-bristle brush to remove dust after each wear and hang the jacket on a broad wooden hanger to keep the shoulder shape.

When storing, use a purpose-made fabric garment bag rather than a plastic bag so the cloth has room to 'breathe'. In addition, letting the suit rest at least 24 hours between wears is extremely important. This allows the fibres to spring back to their original shape and prevents unwanted creasing.

We understand that every suit holds its own memories and value for you. Mon Amie is therefore always ready to support you with lifelong alteration and maintenance of your garments. Let us accompany you on the journey of affirming a personal style full of character.

Mon Amie Veston – Asserting a Gentleman's Refinement

Accompanying clients since 1991, Mon Amie is proud to offer classic suits, the result of refined handcrafted tailoring and high-quality fabrics.

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