What's Sizing Like at Jacquemus Menswear?

Jacquemus menswear is inconsistent by design. Some pieces are cut deliberately oversized, others run genuinely small — and it's all labelled in French/EU sizing, which trips up most UK shoppers. As a rule of thumb: shirts and tops run snug through the chest and shoulders, tailoring and trousers run slim, and jackets are cut big on purpose.

How Jacquemus Menswear Fits

Jacquemus Homme launched in 2018, and the whole point of the line is proportion play — sharp, cropped tailoring one season, floaty organic shapes the next. That's what makes it feel unpredictable. Break it down and it's far easier to shop:

Shirts & tops — Cut narrow through the shoulders and chest. Pieces like La Chemise Bahia are properly snug across the arms. If you're broad or you lift, size up.
Tailoring — Runs slim and often cropped in the sleeve and leg. Lovely on a straight frame, less forgiving if you carry it in the thigh.
Trousers — High-waisted and slim through the hip and thigh, with little to no stretch in the woven fabrics. Try before you commit.
Jackets & outerwear — Designed oversized. Stick to your normal size for that intended slouchy look, or size down if you want it cleaner and closer to the body.
Shoes — Follow EU charts but come up narrow and a touch small. Between sizes? Go up.

The French Sizing Catch

Here's where most men come unstuck. Jacquemus labels in EU numbers — 46, 48, 50, 52 — not S/M/L. A UK 38" chest lands roughly at an EU 48, a 40" around a 50, but treat that as a starting point rather than gospel, because the cut varies so much piece to piece. I've had a client who's a comfortable medium in nearly every label swim in one Jacquemus knit and then struggle to fasten the next one. Same brand, same number on the tag.

A Quick Confession

My own Jacquemus fail: I once ordered a La Montagne shirt in my "safe" size without checking, assuming French and relaxed meant roomy. It turned up cut like a second skin across the shoulders and I couldn't lift my arms past a polite wave. Lesson learned — with this label you measure first and trust the garment, not the size you're used to.

Where Else to Shop That Jacquemus Look

Love the sculptural, sun-bleached-Riviera-meets-sharp-tailoring thing but want options across budgets? These are the brands I send clients to — each one gets at that Jacquemus energy from a slightly different angle.

High street

COS — The closest high-street match for that clean, architectural silhouette. Relaxed tailoring and heavy cotton knits at a fraction of the price.
Arket — Go here for the natural fabrics and unfussy summer separates — linen shirts and pleated trousers with a similar Scandi-minimal calm.

Independent / boutique

Percival — For the playful, holiday side of Jacquemus: camp-collar shirts and textured knits with real personality, from a proper British indie.
Wax London — The move for interesting, textured knitwear and relaxed tailoring with a sustainable backbone. Ideal when you want something nobody else is wearing.
Kestin — A Scottish label doing relaxed, utilitarian tailoring in gorgeous fabrics — the grown-up, genuinely wearable take on the aesthetic.

Designer / luxury

Lemaire — The fluid, minimalist French thing at the highest level. Cut relaxed and endlessly wearable if you want to trade up from Jacquemus.
AMI Paris — Parisian tailoring that's softer and easier to size than Jacquemus, with the same effortless-French energy.
Casablanca — For the resort-luxe, print-heavy, joyful end of the spectrum. Pure Riviera, and cut more generously than Jacquemus.

Everything here shares Jacquemus's DNA but sizes differently — which is exactly the headache.

Stop Guessing With Jacquemus — Let Tellar Do the Maths

This is exactly the kind of label Tellar was built for. Instead of squinting at a French size chart and hoping, Tellar matches your actual body measurements to over 1,500 brands and tells you your precise size in each — accounting for cut, fabric and design intent. You never need to look at a size guide again.

Measure once using your chest, waist and hip — or just your size in a brand you already own.
Use the Store Size Lookup to get your exact size in any brand — COS, Reiss, Everlane, Arket and more.
Shop with confidence — no guesswork, fewer returns, better-fitting buys.
Always free, no download needed — it works straight in your browser.

→ Men's Store Size Lookup

→ How to Measure (Men)

More free menswear guides on the Tellar Fashion Hub — honest, unbiased, independent and always free: