How Should a Polo Shirt Fit? A Plain Guide

A polo is the hardest thing in your closet to fit right, because it's trying to be two things at once: relaxed like a tee, but structured like a shirt. Get it wrong in one direction and it reads like sleepwear. Wrong in the other and it looks like it shrank. Here are the six places to check, in the order that matters.

1. The shoulder seam — get this right first

The seam where the sleeve joins the body should sit right at the edge of your shoulder, where the bone ends and your arm begins. Not drooping down your upper arm (the polo is too big), not riding up onto the top of your shoulder (too small).

Start here because the shoulder is the one thing you can't fix later. A chest that's slightly loose can be lived with; a tee that's slightly long can be tucked. A shoulder seam in the wrong place will look off no matter what else you do. Fit the shoulder, then judge everything else.

2. The chest — the pinch test

Stand normally and pinch the fabric at the side of your chest, under the arm. You want to be able to grab about an inch — a little loose fabric, not a fistful, not nothing.

Nothing to pinch means it's too tight: the placket will pull, gaps will open between the buttons, and the whole thing will cling when you sit. A fistful means it's too loose: it'll billow at the waist and read like a much bigger man's shirt. About an inch is the line between "fitted" and "strangled."

3. The sleeve length — mid-bicep, not the elbow

A short sleeve should end around the middle of your bicep. Long enough to cover the top third of the arm, short enough to show you didn't borrow it from someone taller. A sleeve that reaches the elbow looks oversized; one that stops near the armpit reads like a gym shirt.

4. The sleeve opening — close, not clamping

The cuff should lightly follow the shape of your arm without squeezing it, and without flapping loose like a dress-shirt sleeve. On a knit polo, a ribbed cuff does this for you — it holds a soft shape against the arm instead of hanging open. If the opening flares out into empty space, the polo is cut too generously for you.

5. The body length — tuck-or-untuck range

A good polo length gives you the choice. Long enough that it stays tucked when you raise your arms; short enough that, left untucked, it lands around the middle of your fly — not at the hip (too short, exposes your waistband when you reach) and not at mid-thigh (too long, reads like a nightshirt).

In 2026 most men wear the polo untucked more often than not, so if you only optimize for one, optimize for the untucked length: it should break just past your belt line and stop.

6. The collar — it should stand on its own

The collar should sit flat against the back of your neck and hold a slight stand without you fixing it. A collar that gaps away from the neck, or rolls and curls at the points, was either cut poorly or made from fabric too soft to hold a shape.

This is where knit construction earns its place. A ribbed knit collar holds its stand through the day and through the wash in a way a thin woven collar often doesn't. It's the difference between a polo that looks intentional at 6pm and one that's wilted by lunch.

When to size up (and when not to)

The six checks assume a standard build. Real bodies need judgment. A few honest cases:

Athletic build (chest and shoulders bigger than waist). Fit the shoulders and chest first, accept a little room at the waist, or choose a cut made for it. This is exactly why we make polos in two fits — see below.

You like the looser, untucked 2026 look. Don't buy a tailored polo a size up to fake a relaxed fit; the shoulders will drop and it'll look like a mistake. Buy the cut that's actually relaxed.

Layering under a jacket. Polos go under an unstructured jacket fine at your true size. Don't size down to "streamline" — you'll lose the collar stand and the tuck range.

Between two sizes. This one depends on the fabric. A knit with stretch and a touch of give: size down, it'll relax into you. A stiffer, drier weave with no stretch: size up, it won't grow. (If you want to understand how fabric blends change the way a piece fits and moves, we broke down what each percentage actually does.)

How we cut ours

We make polos in two deliberate fits, because one shape doesn't serve every body or every preference.

The tailored cut sits closer through the chest and waist for a cleaner line — our Contrast Collar Knit Polo is cut this way, with a ribbed collar that holds its stand. If you read sharp and want the polo to follow you, start here, true to size.

The relaxed cut falls easier through the body with a touch more room — our Lightweight Knit Polo and Linen Blend Short Sleeve Polo sit this way. And if you like the collar worn open, the Linen-Cotton Open Collar Polo is cut for exactly that: a soft stand that sits easy without a button. All true to size.

Whichever you pick, the collar is built to hold its shape — a stand that stays put instead of curling by lunch. Across the range, our position is simple: a polo should give you a collar that holds, a sleeve that ends mid-bicep, and a length you can tuck or leave out. The rest is which fit suits how you actually dress.

Where ours are made

Made in the Pearl River Delta, in workshops that produce for European fashion houses. We cut two fits, hold one collar standard, and price them at what the garment is. Check the shoulder first, trust the pinch test, and pick the fit that matches how you wear it.