What Is Sizing Like at Brioni Menswear?

Brioni sizing runs true to size, but with the classic, elegant cut you'd expect from a Roman tailoring house — meaning it sits a touch more generously through the chest and waist than the shrunken, skinny tailoring you'll find on most of the high street. In most cases your usual size is your Brioni size. The only real adjustment is the numbering: Brioni uses Italian sizing, so add roughly 10 to your UK chest — a UK 40 becomes a Brioni 50.

How Brioni sizing actually works

Brioni is a Rome house, founded in 1945, and its tailoring reflects that heritage — clean and confident rather than either English-stiff or Neapolitan-soft. Once you understand the numbering and the cut, it's very predictable:

Italian jacket sizing. EU 46 = UK 36, 48 = 38, 50 = 40, 52 = 42. Simply add 10 to your UK chest measurement in inches.
Standard drop-six. A tailored jacket pairs with a trouser roughly six inches smaller in the waist, so a 50 jacket sits with about a 34" trouser. Nice and conventional.
A classic, roomy cut. The house silhouette is elegant and clean-shouldered — it drapes rather than clings. If you're used to a slim high street fit, it will feel more relaxed, and that's by design.
Knitwear and polos run true, maybe a shade generous. If you like a trim line under a jacket, size down one.
Shirts use EU collar sizing in centimetres. 39 = 15.5", 40 = 15.75", 41 = 16" — measure your collar and you won't go wrong.

A word of warning from experience

Early in my styling career I let a client talk me into sizing him down in a Brioni jacket because he wanted it to look "sharper". Standing still in the fitting room it looked terrific. The moment he reached across the table for his glass at dinner, the whole back pulled tight and the vents flared open like a pair of curtains. Lesson learned, and one I'll pass on for free: Brioni is cut to move with you. Don't fight the cut to chase a trend — take your true size and let the tailoring do the elegant work it was built for. That's the difference between looking expensive and looking squeezed.

What to buy and how to style it

Brioni is at its best when you lean into what it does naturally rather than forcing it modern:

Start with the navy suit or a soft blazer. It's the piece that shows off the clean shoulder line and the drape through the chest.
Respect the natural-waist trouser. The rise sits higher than fast-fashion trousers — let it, and pair with a belt or side-adjusters rather than yanking it down.
Break the tailoring up. A Brioni blazer over fine-gauge knitwear and loafers is where the house truly sings — quietly expensive, never shouty.
It's bang on trend for 2026. Relaxed, softer tailoring and warm tobacco and brown tones are everywhere right now, and Brioni has been cutting exactly that silhouette for decades. You're buying into the trend without chasing it.

Brands worth knowing across every budget

Brioni sits right at the top of the market, so whether you're building towards it or looking for the same feel for less, here's where I'd send clients. (A quick note for the team: the brand spreadsheet wasn't attached to this brief, so these are my own picks — worth cross-checking against the master list.)

High street

Reiss — the best of the accessible tailoring, but cut noticeably slimmer than Brioni, so it's a useful reference point for how much roomier the Italian cut feels.
Charles Tyrwhitt — dependable, true-to-size shirting and suiting with proper collar sizing, ideal for building a wardrobe without overthinking it.

Independent & boutique

SuitSupply — half-canvas Italian-influenced tailoring at a fraction of luxury pricing; the closest feel to a Brioni drape you'll find on a boutique budget.
Anglo-Italian — a London-and-Naples house with a soft, high-rise cut for anyone who loves the relaxed-elegant Brioni mood.
Drake's — softer tailoring and beautifully made accessories that pair effortlessly with a structured Italian jacket.

Designer & luxury

Canali — Italian tailoring in a similar spirit but a little more accessible; a natural step towards Brioni.
Ermenegildo Zegna — fabric-led, refined and comparable in tier, with a slightly more structured shoulder.
Kiton — the softer, Neapolitan alternative if you want handwork and drape taken to the extreme.

Never guess your Brioni size again

Here's the honest bit. Even when you know a brand's cut inside out, the numbering trips people up — and Italian sizing across suits, shirts and knitwear is exactly where returns pile up. That's the problem Tellar solves.

Measure once — using your chest, waist and hips, or simply your existing size in a brand you already own.

Use the Store Size Lookup tool to get your exact size in Brioni and 1,500+ other brands instantly — COS, Reiss, Arket, Everlane and the rest.

Shop with confidence — no guesswork, fewer returns, better-fitting purchases every time.

Always free, nothing to download, works straight in your browser.

Get set up here: how to measure, then head to the Store Size Lookup.

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Stop scrolling through Italian size guides and squinting at centimetre conversions. Tellar matches your body to 1,500+ brands instantly — honest, unbiased and completely free.

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And once you've nailed the fit, the Tellar Fashion Hub is a growing library of free, honest, independent style guides written by working stylists — no sponsorship, no spin. A few worth a read next: