How To · Fashion · Build
The Essential Fit Checklist for Men's Shirts
A well-fitting shirt is the foundation of any outfit. This checklist walks you through five critical fit points so you can evaluate any shirt—new or existing—with confidence.
5 min read · IrisMost men own at least one shirt that doesn't quite fit right. Maybe the sleeves are too long, or the chest pulls slightly when you button it. The problem isn't always the shirt—it's that fit is objective until you know what to measure.
This checklist gives you five concrete fit points to evaluate. Use it when shopping, when tailoring, or when assessing what's already in your closet. No guessing required.
The shoulder seam is non-negotiable. If it's off, no amount of tailoring will fix it.
Step one · 2 minutes
Check the shoulder seam placement
Put on the shirt and look at where the seam sits on your shoulder. It should align with the edge of your shoulder bone—roughly where your arm naturally hangs. If the seam sits too far inward (toward your neck), the shirt is too small. If it extends past your shoulder point onto your arm, it's too large. This is the one fit element that cannot be altered by a tailor, so get it right first.
Ask a friend to look at you from the side. The seam should form a clean line perpendicular to your body.
Step two · 2 minutes
Evaluate chest and torso fit
Button the shirt fully and assess how it sits across your chest and ribs. You should be able to fit one flat hand (or roughly one inch) of fabric between the shirt and your body when you button it. If you can pinch more than two inches, it's too loose. If you cannot fit a hand flat, it's too tight and will pull at the buttons or restrict movement. The shirt should skim your body without clinging or billowing.
Raise your arms to shoulder height. The fabric should move with you, not pull or gap at the sides.
Step three · 2 minutes
Measure sleeve length
Let your arms hang naturally at your sides. The sleeve cuff should end at your wrist bone—where your hand begins. Ideally, about a half-inch to three-quarters of an inch of cuff should show beyond your jacket sleeve when you wear one. If the sleeve ends mid-forearm, it's too short. If it extends past your wrist or covers your hand, it's too long. Sleeve length is easily tailored, but getting it right makes an immediate difference in how polished you look.
Bend your elbow slightly. The sleeve should not bunch or gap at the crease.
Step four · 2 minutes
Assess overall length and hem
The shirt hem should fall to mid-hip, roughly where your hands naturally rest when your arms are at your sides. It should cover your belt and not ride up when you move or sit. If the hem hits above your hip bone or extends significantly past your hip, it's not the right length for your frame. Shirt length is tailorable, but a correct length means the shirt stays tucked and proportioned throughout the day.
Sit down in the shirt. It should not pull out of your pants or ride up excessively.
Step five · 2 minutes
Check armhole depth and comfort
The armhole—the opening where your arm enters the shirt—should sit snugly in your underarm without restricting movement or creating excess fabric. If the armhole is too deep, you'll see bunching under your arm when you move. If it's too shallow, you'll feel restricted when you raise your arms. Move your arm in circles and reach forward. The shirt should allow full range of motion without pulling or gapping at the sides.
Wear an undershirt while testing. This mimics how you'll actually wear the shirt and affects fit perception.
How to know it works.
A well-fitting shirt moves with you, not against you. You should forget you're wearing it—no tugging, no excess fabric, no restriction. If you pass all five checks, the shirt fits.
Questions at the mirror.
The shoulders fit perfectly, but the chest is too tight. What do I do?
You likely need to size up. However, this will affect sleeve length and overall length, which you can then tailor. Alternatively, look for brands that cut fuller through the chest in the same shoulder size.
Can a tailor fix shoulder seams?
No. Moving a shoulder seam requires rebuilding the armhole, which is expensive and often results in a poor fit. If the shoulders are wrong, the shirt isn't right for your body.
My sleeves are too long. How much does tailoring cost?
Sleeve hemming typically costs $15–$30 per shirt at a standard tailor. It's one of the most affordable alterations and worth doing if everything else fits.
Should I size based on my chest measurement or shoulder width?
Shoulder width. Chest can vary based on fit style (slim, regular, relaxed), but shoulder seams are fixed. Find your shoulder size first, then adjust chest fit through sizing or tailoring.