Jean Paul Gaultier Sizing: Does It Come Up Small — And What Should You Know Before Buying?

By Ella Blake — Fashion Stylist | Tellar Fashion Hub — Always honest, unbiased, & unsponsored

Yes — Jean Paul Gaultier runs small. If you've ever lusted after one of those iconic cone bra corset pieces or a perfectly cut Breton stripe design and wondered whether to size up, the answer is almost always: yes, go a size up. French luxury sizing is notoriously narrow compared to UK sizing, and JPG is no exception.

I've had my own Jean Paul Gaultier moment — found the most exquisite structured blazer in a vintage boutique in Paris about six years ago, fell completely in love, convinced myself the 40 would squeeze over my shoulders. Reader, it did not. I still think about it. Lesson learned the hard way: with French designer sizing, always size up and never let hope override the tape measure.

How Jean Paul Gaultier Sizing Works

Jean Paul Gaultier uses standard French/EU sizing, which runs consistently smaller than UK sizing. As a general rule of thumb:

A French size 36 = UK size 8 (though can fit more like a UK 6–8 depending on the cut)
A French size 38 = UK size 10, often fitting more like a tight 10
A French size 40 = UK size 12, again, often on the smaller side
A French size 42 = UK size 14

The key thing with Gaultier — particularly the archival and couture-adjacent pieces — is that the construction is intentional and structural. These are not clothes designed to skim generously over the body. The tailoring is precise, the corsetry is fitted, and the silhouettes are architectural. If you're buying for comfort or movement, you'll want to go up at least one full size. If you're buying for an occasion look where you'll be standing and posing rather than sitting down to a three-course dinner, you might get away with your true size.

The Corset and Structured Pieces — Size Up, Always

The pieces Jean Paul Gaultier is most famous for — corset dresses, structured bodices, bustier tops — are designed to cinch. They are meant to be fitted. But "fitted" in the JPG world means boned, constructed, and unforgiving around the ribcage and bust. I've spoken to clients who've bought these pieces at their standard EU size and couldn't fasten them comfortably, especially across the back. For anything corset-style or boned, go up one full size minimum. Two if you have a broader back or a fuller bust.

The same applies to the brand's tailored pieces — sharp-cut trousers, fitted jackets, structured coats. French tailoring tends to assume a slim, narrow-shouldered frame. If you carry any width across the shoulders (lucky you, honestly — it's a powerful look), size up.

What About JPG's More Relaxed Pieces?

The Breton stripe tops, softer jersey pieces, and some of the more casual separates are a little more forgiving — but still not generous by UK standards. For jersey styles you might get away with your usual EU equivalent, but I'd still recommend checking the brand's measurement chart against your own measurements rather than relying on size numbers alone. Gaultier's EU 38 and a Zara EU 38 are genuinely not the same animal.

Buying Jean Paul Gaultier Pre-Owned or Vintage?

This is where sizing gets more complex. Vintage JPG — particularly pieces from the 1990s and early 2000s, which are extremely sought-after right now — can be cut quite differently to the contemporary sizing. The 1990s cuts in particular were often very small. If you're shopping vintage, go strictly by measurements: bust, waist, and hip in centimetres against the actual garment measurements. Don't trust the label size at all. I've seen vintage JPG labelled a 42 that measured closer to a modern 38 — the size labels of that era were essentially decorative.

How to Find Your Jean Paul Gaultier Size Without the Stress

The most accurate way to buy any designer piece online — particularly French designer — is to measure yourself properly first. Bust, waist, hips in centimetres. Then match those measurements directly to the size chart. Never buy on size label alone. The Tellar size tool (see below) makes this considerably less painful.

High Street Alternatives to Jean Paul Gaultier's Iconic Aesthetic

Can't stretch to JPG prices? You absolutely don't need to. These brands do a brilliant job of channelling that structured, directional, slightly theatrical French energy at considerably more accessible prices:

Reiss — Consistently excellent for sharp tailoring and structured blazers. The kind of elevated high street that doesn't feel like compromise.
Whistles — Great for considered, fashion-forward pieces without the designer price tag. Their corset-influenced tops and structured co-ords punch well above their weight.
Me&Em — British brand making genuinely wearable but elevated pieces. Their tailored trousers in particular are excellent quality for the price.
Cos — For architectural, Scandinavian-minimalist pieces that share JPG's love of structure and precision without the theatrics.
Massimo Dutti — Understated luxury fabrics, excellent tailoring. Spanish brand with a real eye for quality at mid-range prices.
Ted Baker — For the more romantic, embellished side of JPG's output. Particularly good for occasion dressing with a fashion edge.
Phase Eight — Especially strong for the occasion and event dressing pieces. Structured dresses with real construction behind them.
Hobbs — British brand with excellent tailored pieces. Classic but not boring; the quality is genuinely impressive at this price point.
All Saints — For the edgier, slightly darker aesthetic that runs through a lot of JPG's work. Leather and structured knits particularly strong.

Two Independent Brands Worth Knowing

Kitri — London-based independent brand producing beautifully constructed dresses and separates at honest prices. Limited-edition drops, proper tailoring, and a real commitment to considered design. A genuine find.
Saiid Kobeisy — Lebanese-born designer with a spectacular eye for structured, artistic fashion that has real JPG DNA in its bones. Less well-known than it deserves to be, and considerably more accessible at the lower end of his range than JPG itself.

🧵 Never Get the Size Wrong Again — Tellar.co.uk

Sizing varies enormously across designer brands — especially French and European labels like Jean Paul Gaultier. Tellar is the UK's leading free sizing tool, matching your exact measurements to 1,500+ brands instantly.

Measure once — bust, waist, hip, or use an existing brand size you know fits
Get your precise size in any brand — from JPG to COS, Reiss, Everlane, Arket & more, via the Store Size Lookup tool
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👉 Visit tellar.co.uk — your body, matched to every brand.

Plus explore the Tellar Fashion Hub — a free library of honest, unbiased, unsponsored style guides written by our in-house stylists. No ads. No sponsored posts. Just good advice.