An ill-fitting suit usually gives itself away in five places: shoulders that hang past your own, an X-shaped pull across the chest when you button it, sleeves that are too long or too short, a jacket that is boxy or tight through the torso, and a collar that gaps away from your shirt. Some of these are easy for a tailor to fix. Others mean the suit was never going to fit you.
Poor fit is the most common mistake in menswear. It doesn’t matter how good the cloth is or how sharp the styling looks. If the suit doesn’t fit, none of it lands. Here is how to spot each problem in the mirror, what causes it, and whether it can be fixed.
Sign 1: The Shoulders Don’t Sit Right
What to look for: The shoulder seam should land at the edge of your shoulder bone. If it hangs past your shoulder onto your arm, or there is a dent in the sleeve just below the pad, the jacket is too big. If the seam is pulled in toward your neck and the top of the sleeve feels tight, it is too small.
Can a tailor fix it? Rarely. The shoulder is the hardest part of a jacket to alter, and most tailors won’t recommend it. Gentleman’s Gazette’s alterations guide marks shoulder changes as “not recommended.” If the shoulders are wrong, the suit is the wrong size for you.
For a closer look at what a correct shoulder looks like, see our guide to where a shoulder seam should sit.
Sign 2: The Chest Pulls or Gaps When Buttoned
What to look for: Button the jacket and look straight at the front. Creases pulling out from the button in an X shape mean the jacket is too tight through the chest or waist. If the fronts hang open or the lapels lift away from your chest, it is too loose.
Can a tailor fix it? A jacket that is a little loose can usually be taken in through the side seams. A jacket that is too tight is harder, because there is often very little spare fabric inside to let out. A tailor can tell you how much seam allowance there is once they look.
Sign 3: The Sleeves Are the Wrong Length
What to look for: With your arms relaxed at your sides, the jacket sleeve should stop just above your wrist bone and show about a quarter to half an inch of shirt cuff. Sleeves that cover your shirt cuff completely look sloppy. Sleeves that stop well above the wrist look borrowed.
Can a tailor fix it? Yes, in most cases. Shortening sleeves is one of the most common alterations. Lengthening depends on how much fabric is folded inside the cuff. Sleeves with working buttonholes are harder to change, so ask before you buy.
Shirt fit matters here too. If your shirt sleeves are the wrong length, the cuff won’t show correctly no matter what you do to the jacket. Our hand-crafted shirts are cut to your arm length for that reason.
Sign 4: The Torso Is Too Boxy or Too Tight
What to look for: From the side, a good jacket follows your shape with a little shaping at the waist. If it hangs straight down from your chest like a box, it is too loose. If it pulls at the button or the vents spread open when you stand still, it is too tight.
Can a tailor fix it? Taking in a boxy jacket through the sides is routine work. Letting out a tight one is limited. The jacket length can’t really be changed, so if the jacket doesn’t cover your seat, or falls well below it, that is a sign the size is wrong.
This is especially common after body changes, when your measurements no longer match the size you used to buy. We wrote about that in why tailored clothing matters more after weight loss.
Sign 5: The Collar Gaps Away From Your Shirt
What to look for: Look at the back of your neck in a second mirror, or ask someone to take a photo. The jacket collar should sit against your shirt collar. If there is a visible gap, or the collar stands away when you move, that is collar gap.
Can a tailor fix it? Sometimes, but it is skilled work. Collar gap usually comes from posture, shoulder slope or the shape of your back not matching the pattern. A small gap can often be reduced. A large one points back to a jacket that wasn’t cut for your build.
Is Your Suit Too Big or Too Small?
If you are not sure which way your suit is off, this quick guide helps:
| Area | Too Big | Too Small |
|---|---|---|
| Shoulders | Seam hangs past your shoulder, dent below the pad | Seam sits in toward your neck, tight at the top of the sleeve |
| Chest | Fronts hang open, lapels lift away | X-shaped pull from the button |
| Sleeves | No shirt cuff showing | Sleeve stops well above the wrist |
| Torso | Hangs straight like a box | Pulls at the button, vents spread open |
| Jacket length | Falls well below your seat | Doesn’t cover your seat |
| Trousers | Fabric pools at the shoe, loose seat | Pockets flare open, pulls across the thighs |
Trouser fit is its own subject. Our post on why custom trousers matter covers the rise, seat and break in more detail.
What to Do About It
Start with the parts that can’t be changed. If the shoulders, chest and jacket length fit, a tailor can handle the sleeves, waist and trousers, and the suit is worth saving. If the shoulders or length are wrong, more alterations won’t fix the suit. You’ll just spend more on something that still doesn’t fit. Our guide to whether off-the-rack suits can be tailored covers which changes are worth paying for.
For a full head-to-toe check of a suit that does fit, see how to know if a suit fits well and the fit guide from Gentleman’s Gazette.
Why Off-the-Rack Suits Miss
Off-the-rack suits are cut for an average body that very few people actually have. They are graded from the chest, so they assume your shoulders, arm length, posture and waist all match your chest size. When they don’t, you end up adjusting yourself to the suit instead of the other way around. That is where almost every fit problem on this list comes from.
How The Tailored Foundation Gets It Right
We don’t guess your size. We take your measurements, watch how you stand and move, and build the pattern around you. Shoulder width and slope, jacket length, armhole height and collar balance are set before the cloth is cut, so the five problems above are dealt with from the start. You can see how measurements are taken in our measuring guide.
Whether you want a custom suit, a new blazer or a full wardrobe, the goal is the same: clothing that fits the way it should.
If your suit shows even one of these signs, book a fitting at The Tailored Foundation or call us at (224) 628-2980.
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