The Most Common Suit Fit Mistakes

The most common suit fit mistakes are shoulders that are too wide, a jacket that pulls at the button, sleeves and trousers that are too long, and a collar that gaps at the neck. Most are avoidable. Get the shoulders and length right and a suit looks far sharper.
Most suits that look off are not badly made, they just fit badly in a few predictable ways. Learn the common mistakes and you can spot them on yourself and fix them. Here are the suit fit mistakes to watch for.
Shoulders and Button
The two that matter most are the shoulders and the button. A shoulder seam that hangs past your actual shoulder makes the whole jacket look borrowed, and it is the hardest thing to alter, so get it right first. And an X-shaped pull at the button means the jacket is too tight through the body. Our post on why a jacket pulls at the button covers that one. Both point to a jacket that is not cut to your body.

Length Everywhere
The next cluster is length: sleeves that swallow the hands, trousers that pool at the shoe, a jacket that hangs too long and shortens the legs. These are among the easiest things to fix and the most common to get wrong. Sleeves should end at the wrist bone and show a little cuff, and trousers should break just once on the shoe.

The Collar Gap
Finally, the collar. A jacket collar should sit flat against your shirt collar and the back of your neck. A gap there, where the collar stands away from the neck, is a classic sign of a jacket that does not fit through the upper back. It is fixable by a good tailor, but on a suit built to your measurements it should not appear at all.
FAQ
What is the most common suit fit mistake?
Shoulders that are too wide. A shoulder seam hanging past your actual shoulder makes the jacket look borrowed, and it is the hardest part to alter, so it matters most to get right. After that come length issues and a button that pulls.
How should suit sleeves and trousers be?
Sleeves should end at the wrist bone and show about half an inch of shirt cuff. Trousers should break just once on the shoe rather than pooling at the ankle. Both are easy to alter and among the most common lengths to get wrong.
Why does my jacket collar stand away from my neck?
A collar gap usually means the jacket does not fit through the upper back and shoulders. A good tailor can often correct it, but on a suit built to your measurements the collar should sit flat against your neck from the start.
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