What is sizing like at Zegna menswear?

Zegna runs true to size, but the cut is unmistakably Italian – lean through the chest and waist with a slightly elongated line that sits close to the body. If you’re a genuine 40″ chest you’ll take a 50 in the tailoring, and it’ll fit trim rather than roomy. Most men do not need to size up.

How Zegna Actually Fits

Tailoring (jackets and suits): numeric EU sizing (46–58), cut on a slim, elongated line with a soft-structured shoulder. True to size for most, but sit down in it before you buy – a Zegna jacket that’s a touch tight through the seat and shoulders is the number-one return.
Trousers: clean, tapered leg with a mid rise. They’re cut close through the thigh, so athletic legs are the ones most likely to want the next size up.
Knitwear: slim and body-skimming. Their cashmere is genuinely a highlight, but if you like a relaxed jumper, go up one.
Shirts: a fitted Italian cut with a slightly higher armhole. Comfortable if you’re trim, restrictive if you’re not.
Shoes and trainers: EU sizing, true to size. The Triple Stitch trainer fits neatly – no need to adjust.
The newer relaxed pieces: since the rebrand, a lot of Zegna’s leisurewear (elasticated trousers, overshirts, blousons) runs softer and roomier than the old sharp suiting. Don’t assume every piece is slim – the casual line has loosened up considerably.

A Quick Word on the Fabric

Here’s something worth knowing before you spend the money: Zegna owns its own wool mills and sources much of its merino from its own farms in Australia. That vertical control is why the cloth drapes the way it does. It also means the fabric moves with you – so a Zegna jacket can feel closer-fitting than the measurements suggest and still be comfortable all day. I once talked a client out of sizing up on a High Performance wool suit because he was reading it like stiff worsted. He kept his true size, the cloth gave where it needed to, and it’s still his wedding-and-funerals suit five years on.

My own fail, for balance: early in my career I bought a Zegna knit a size down because it was on sale and I convinced myself I’d “grow into the fit.” Reader, I did not. Slim knitwear does not become more forgiving. Buy the size you are, not the size you’re promising yourself you’ll be by summer.

Who Zegna Suits Best

Trim to average builds: the house cut is practically made for you. Take your true size and enjoy it.
Tall and lean: the elongated line is flattering – this is where Zegna outperforms most British tailoring.
Broad or muscular: try before you buy, prioritise the shoulder fit on jackets, and lean towards the more relaxed leisure pieces where the brand gives you room.

Where Else to Look

If Zegna is the benchmark, here are the brands I send clients to across every budget – each earns its place for a different reason.

High Street

Reiss – the closest the high street gets to that lean Italian line. Their tailoring is slim and elevated, so if Zegna fits you well, Reiss will too. A smart way to build a wardrobe around the same silhouette for a fraction of the outlay.
COS – minimalist and architectural, brilliant for relaxed tailoring and clean knitwear. Fits a touch roomier than Reiss, which suits the men who find Zegna a shade tight.

Independent & Boutique

Suitsupply – the best value-for-money tailoring going, and the fit philosophy is close to Zegna’s: trim, Italian-influenced, sharp. If you want the Zegna cut without the Zegna price, start here.
Sunspel – British heritage done properly. Their T-shirts and knitwear are the quiet-luxury basics that sit perfectly under a Zegna jacket.
Drake’s – for the man who loves cloth and detail. Softer, more characterful tailoring and the best accessories in the business. A real connoisseur’s pick.

Designer & Luxury

Canali – Zegna’s most direct Italian rival, with a marginally softer, more forgiving cut. If Zegna’s shoulders feel sharp on you, Canali is the natural switch.
Brunello Cucinelli – the king of relaxed luxury and cashmere. Where Zegna is precise, Cucinelli is easy and undone. Perfect if your taste is leaning more casual-elegant.
Loro Piana – like Zegna, a fabric house first. Understated to the point of invisibility, but the materials are second to none. The move for the man who wants no logos and all the quality.

What’s on Trend Right Now

Menswear has swung firmly towards relaxed elegance, and Zegna has led it – softer tailoring, elasticated waistbands, overshirts worn in place of blazers, and knitted polos under an unstructured jacket. The move to make is a Zegna knit or overshirt as your hero piece, then supporting cast from the brands above. You get the quiet-luxury look without dressing head-to-toe in one label, which always reads more considered anyway.

Nail Your Zegna Size Before You Buy: Use Tellar

Sizing across 1,500+ brands is exactly the problem Tellar.co.uk was built to solve. It’s the UK’s leading sizing tool – your body matched precisely to any brand in seconds, so you never squint at a size guide again. Always honest, always unbiased, always free.

Measure once using your bust, waist, hip, or simply a brand size you already own.
Use the Store Size Lookup tool to get your exact size in any brand – Zegna, COS, Reiss, Everlane, Arket and more.
Shop with confidence – no guesswork, fewer returns, better-fitting purchases.
Always free, no downloads, works straight in your browser.

Find your Zegna size here: Store Size Lookup. Not sure how to measure? Follow the simple guide at How to Measure.

There’s also the Tellar Fashion Hub – a growing library of free posts from our stylists. Honest, unbiased, independent and always free, covering style advice, top picks and the best brands. A few worth a read next:

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