A well-fitting shirt that costs a little will look better than an expensive one that hangs off your shoulders. Fit is the single biggest factor in how a man’s outfit looks, and it is the one factor you can control at almost any budget.
Most men do not struggle with style. They struggle with sizing. They buy the size printed on the label last time, or the size that “usually works”, and never check how the clothes actually sit on their body. Sizes also differ between brands, countries and even between two garments from the same shop.
This guide explains how clothes should fit, piece by piece. You will learn which measurements matter, how to check a shirt, trousers, jacket or T-shirt in a mirror, how the common fit names (slim, regular, relaxed) differ, and which small alterations are worth paying for. You do not need any special knowledge. You need a tape measure, a mirror and a few minutes.
What good fit really means
Good fit means the garment follows your body without restricting it. You should be able to raise your arms, sit down and walk comfortably, and the fabric should not pull, bunch or hang in loose folds. Three ideas run through everything below:
- Structure comes first. Shoulders, chest and waist hold a garment in place. If these are wrong, nothing else can be fixed easily.
- Length can be changed, structure cannot. A hem or sleeve is simple to shorten. Shoulders are not. Always buy for the hardest part to alter.
- Comfort is part of fit. A garment that looks sharp in the mirror but pinches when you sit is the wrong size.
Know your measurements first
Take your measurements once, write them down and keep them on your phone. They make online shopping far less risky, because you can compare your numbers with a size chart instead of guessing. Ask a friend to help, wear thin clothes, and keep the tape snug but not tight.
| Measurement | How to take it | What it helps you choose |
|---|---|---|
| Chest | Around the fullest part, under the arms, tape level across the back | Shirts, T-shirts, jackets |
| Shoulder width | Edge of one shoulder bone to the other, across the back | Shirts, jackets, blazers |
| Sleeve length | From the shoulder edge to the wrist bone, arm slightly bent | Shirts, jackets |
| Waist | Around the natural waist, just above the navel | Trousers, jeans |
| Inseam | Crotch seam down to where you want the hem to end | Trousers, jeans |
Two habits save a lot of money. First, measure a garment you already own and love, laying it flat and measuring across the chest, waist or length. Compare those numbers with the size chart of anything new. Second, always read the chart for that specific brand. A medium from one label can be a small from another.
If you are between two sizes, choose by the part that is hardest to alter. For a shirt that is the shoulders and chest. For trousers it is the waist, because a waist can be taken in slightly, while a short leg cannot be lengthened much.
How a shirt should fit
A shirt is judged from the top down. Start at the shoulders and work towards the hem.
Shoulders. The seam where the sleeve joins the body should sit exactly on the edge of your shoulder bone. If the seam hangs down your upper arm, the shirt is too big. If it rides up toward your neck, it is too small. This is the most important check and the hardest to alter.
Collar. With the top button fastened, you should be able to slide one or two fingers between the collar and your neck. Any more and the collar gapes under a tie. Any less and it chokes you after a meal.
Chest and torso. Stand relaxed and look in the mirror. The fabric should lie flat across your chest. Horizontal pulls near the buttons mean the shirt is too tight. Large vertical folds of loose fabric at the sides mean it is too wide. You should be able to pinch about two to three centimetres of fabric at your waist, not a handful.
Sleeves. For a long-sleeve shirt, the cuff should end at the wrist bone and just touch the base of your thumb when your arm hangs down. When you bend your arm, the cuff should not slide far up your forearm.
Length. A shirt worn untucked should end around the middle of your zip, roughly mid-seat. A shirt worn tucked in should be long enough that it stays tucked when you raise your arms. If it keeps escaping, it is too short for tucking.
For casual short-sleeve shirts, the sleeve should end around the middle of the upper arm, with a little room, not clinging to the muscle.
How trousers and jeans should fit
Trousers have four places to check: waist, seat, leg shape and hem.
Waist. Trousers should stay up without a belt. If you can fit more than two fingers behind the waistband, they are too loose. If the button digs in or the pockets flare open when you sit, they are too tight. A belt is an accessory, not a repair.
Rise. The rise is the distance from the crotch seam to the top of the waistband. A mid rise suits most men and sits at or just below the navel. A very low rise can be uncomfortable when you sit and tends to date quickly. A very high rise looks formal and works best with tucked-in shirts.
Seat and thigh. The fabric should skim your seat and thighs. If you see stretch lines or the pockets pull open, go up a size. If the fabric hangs in loose pleats under the seat, go down.
Leg shape. This is partly personal taste, but a few rules help:
- A straight or slightly tapered leg suits almost every body type.
- A very skinny leg works only on slim builds and can make the upper body look bigger.
- A wide leg needs a fitted top so the outfit does not look shapeless.
Hem and break. The break is the small fold of fabric where the trouser meets your shoe. There are three common options:
| Style | Where the hem ends | Best for |
|---|---|---|
| No break | Just touches the top of the shoe | Slim, modern, formal-casual looks |
| Slight break | Rests lightly on the shoe with a small fold | Most office and everyday wear |
| Full break | A deeper fold above the shoe | Relaxed, traditional or wide-leg trousers |
For jeans, a small stack of fabric at the ankle is normal. Check the fit after a wash, because denim can shrink a little. Stretch denim moves with you but may loosen after a day of wear, so buy it snug rather than loose.
Jackets, blazers, T-shirts and knitwear
Jackets and blazers. The shoulder rule is even stricter here, because a tailor can rarely fix the shoulders of a jacket. The shoulder seam should end at your shoulder bone, with no dimple or overhang. When buttoned, the jacket should lie flat without an X-shaped crease at the button. The sleeve should show about one centimetre of shirt cuff. The jacket length should cover your seat, which is a good guide for most men.
T-shirts. A T-shirt is simple, so the details matter. The neckline should sit flat against the collarbone without waving or stretching. The sleeves should hug the upper arm gently and end around the middle of it. The hem should fall about a hand’s width below the belt line. A T-shirt that is too long looks sloppy. One that rides above the belt when you move is too short. Cotton shrinks, so allow for a little shrinkage if you wash at high heat.
Sweaters and knitwear. Knitwear stretches over time, so it should feel slightly snug when new. The shoulder seam should follow the same rule as a shirt. The cuffs should grip the wrist, and the hem should sit at the hip. If you plan to wear a collared shirt underneath, check that the sweater is not so tight that the collar bunches.
Layering. When you wear more than one layer, each outer layer should be slightly larger than the one beneath it, so you can move freely. A fitted T-shirt, a slightly roomier overshirt, then a jacket gives a clean silhouette without bulk.
Slim, regular and relaxed: choosing a fit type
Most brands sell the same garment in several cuts. The names are not standardised, but the idea is similar everywhere.
| Fit type | How it feels | Who it suits |
|---|---|---|
| Slim | Close to the body, narrower through the chest, waist and leg | Lean and athletic builds; men who like a sharp, modern shape |
| Regular (classic) | Straight cut with comfortable room through the body | Most men; the safest choice for everyday and office wear |
| Relaxed (loose) | Extra room in the chest, seat and thigh | Casual wear, hot weather, broader builds who want comfort |
| Tailored | Shaped to your body with darts or a tapered waist | Formal wear and men who want a precise silhouette |
A few notes on choosing:
- Build matters more than trend. A slim cut on a broad frame pulls at the chest and shoulders. A relaxed cut on a very slim frame can look like borrowed clothing.
- Match the fit to the occasion. Regular or tailored cuts suit offices and events. Relaxed cuts suit weekends and hot days.
- Balance your outfit. If the top is relaxed, keep the bottom closer to the body, and the other way round. Two loose pieces together can look shapeless, and two very tight pieces can feel restrictive.
- Try both neighbouring sizes. If a slim size feels tight, do not assume you are a bigger size. Try the regular cut in your usual size first.
A quick fit checklist and the most common mistakes
Use this list in the changing room or when a new parcel arrives. Wear the clothes for a few minutes, move around and then answer each question.
- Do the shoulder seams sit on the edge of my shoulders?
- Can I raise my arms, sit and bend without the fabric pulling?
- Is there no horizontal pulling near buttons or pockets?
- Is there no large loose fabric at the sides, back or seat?
- Do the sleeves end at the wrist bone, and the trousers at the shoe?
- Does the garment look the same when I sit down and stand up?
- Do I feel comfortable enough to wear it all day?
Mistakes to avoid
- Buying the size you used to be. Bodies change. Re-measure once a year.
- Buying clothes to “grow into” or “shrink into”. Clothes bought for a future body rarely get worn.
- Ignoring the brand’s size chart. Labels are not universal.
- Choosing a bigger size to hide your body. Clothes that are too large add visual bulk. A correct fit is usually more flattering.
- Forgetting the fabric. Linen and cotton relax and wrinkle. Stretch fabrics loosen. Polyester holds its shape.
- Skipping the sit-down test. Many trousers fit while standing and fail the moment you sit.
Tailoring: what is worth altering
A good tailor can turn an average garment into a good one. Alterations are usually cheaper than buying a new piece, but only certain changes are worth the money.
| Alteration | Worth it? | Notes |
|---|---|---|
| Shortening trouser hems | Yes | Quick, cheap and makes a big difference |
| Shortening sleeves | Yes | Easy on shirts; harder on jackets with working buttons |
| Taking in the waist of trousers | Yes | Usually a small amount only |
| Slimming the body of a shirt | Yes | Removes loose fabric at the sides |
| Tapering trouser legs | Often | Works best on straight, plain trousers |
| Adjusting jacket shoulders | Rarely | Expensive and risky; buy the right shoulder instead |
| Making a garment much larger | Rarely | Seam allowance is limited |
Before visiting a tailor, wear the shoes you plan to use with the garment, and ask for a quote first. Alterations are best on garments you already like and will wear often.
Final thoughts
Fit is a skill you can learn in an afternoon. Take your measurements, check the shoulders first, test the garment while moving and sitting, and choose the cut that suits your build and the occasion. Do this and even simple, affordable clothes will look sharp.
If you want to put these ideas into practice, browse the Men’s collection and compare each product’s size chart with the measurements you noted above. Next in this series, we look at how to dress for each season and how to match colours in your wardrobe.