What’s My Clothes Size at Sézane? Does Sézane Run Big or Small?

Sézane is the epitome of effortless French style—feminine, tailored, and subtly chic. Known for its lace blouses, structured denim, vintage-inspired dresses and romantic knits, the Parisian brand has earned a cult following across Europe and the UK.

But behind the polished aesthetic, many shoppers are left wondering:

What size should I buy at Sézane?

Does Sézane run big or small? And how can you find the right fit—especially when shopping from the UK where sizing standards differ?

This post answers those questions in detail—and introduces Tellar.co.uk, the UK’s leading free sizing tool that helps you find your perfect Sézane size in real time, based on your body measurements.

Does Sézane Run Big or Small?

Sézane tends to run small, especially in fitted tops, dresses, and denim.

While sizing varies by fabric and collection, UK customers frequently report that:

Tops and blouses are snug across the bust and shoulders
Dresses can be fitted at the waist and hips, with minimal stretch
Trousers and denim tend to be cut for straighter figures, making them tight for curvier body types
Knitwear is more forgiving and often fits true to size or slightly large

In general, UK shoppers often size up when buying from Sézane—particularly in structured garments or non-stretch pieces.

Why Sézane Sizing Can Feel Inconsistent

Several design factors contribute to sizing confusion:

1. European Fit Block

Sézane is based in France and uses European fit standards, which typically reflect:

Narrower shoulders
Straighter waists
Longer torsos
This can be difficult for UK customers with curvier or petite proportions.

2. Minimal Stretch

Many of Sézane’s most iconic garments—denim, poplin shirts, blouses—use natural fibres like cotton, wool, and silk, with little or no elastane. This means fit is less forgiving.

3. Inconsistent Fit Notes

While Sézane does include some product-specific notes (e.g. “if you are between two sizes, take the larger one”), there is no unified logic across the brand’s collections.

Sézane Fit Summary by Category

Garment Type	Fit Behaviour	Tellar Sizing Tip
Blouses & Poplin Shirts	Narrow at bust/shoulder	Size up if fuller-busted or broad
Denim & Trousers	Structured, no stretch	Size up for hips or curvy shapes
Tailored Dresses	Fitted at waist/bust	Often size up
Smock Dresses & Wraps	Roomy or adjustable	Stick to your true size
Knitwear	Softer and more forgiving	True to size or down if between sizes
Jumpsuits	Rigid through torso/hips	Size up for movement

Sézane's Size Chart (UK Conversion)

FR Size	UK Size	Bust (cm)	Waist (cm)	Hips (cm)
34	UK 6	80	62	88
36	UK 8	84	66	92
38	UK 10	88	70	96
40	UK 12	92	74	100
42	UK 14	96	78	104
44	UK 16	100	82	108

While helpful, this chart doesn’t reflect:

The cut of each garment
Your proportions (e.g. smaller waist, curvier hips, broader shoulders)
Whether the garment stretches, buttons up, or cinches at the waist

That’s where Tellar.co.uk offers a smarter solution.

Tellar.co.uk: Find Your Perfect Sézane Size Instantly

Tellar.co.uk is the UK’s most accurate free sizing tool. It matches your real body measurements to Sézane’s garment logic—accounting for fabric, cut, and body shape in real time.

No more relying on vague reviews or size charts. Just personalised sizing that adapts to every piece you want to buy.

How It Works

Go to www.Tellar.co.uk
Create your free profile (takes under 60 seconds)
Enter your bust, waist, and hips (in cm or inches)
Select Sézane from the brand dropdown
Instantly get your correct Sézane size across dresses, tops, trousers and more

Once saved, your profile also works for over 1,500 brands—no duplicate entries required.

Why It Works So Well for Sézane

✅ Fit-Specific Recommendations

Tellar knows which Sézane styles run snug, structured, or oversized—and adjusts accordingly.

✅ Fabric & Design Logic

Cotton poplin blouse = no stretch. Wrap dress = adjustable. Tellar tailors your size for both.

✅ Based on Your Shape

Your largest relevant measurement determines the fit—hips for trousers, bust for blouses, etc.

✅ One-Time Setup

Enter your body data once—Tellar handles sizing from then on, across all brands.

✅ Totally Free

No subscriptions, no paywalls, no hidden features.

Example: UK Size 12 Customer

Measurements:

Bust: 91cm
Waist: 74cm
Hips: 101cm

Tellar may recommend:

Sézane cotton shirt: Size 42 (UK 14, for shoulder/bust room)
Sézane denim jeans: Size 42 (UK 14, for hip comfort)
Sézane knit jumper: Size 40 (UK 12, true to size)
Sézane structured midi dress: Size 42 (cut snug at waist and bust)

Each result includes a reason, so you understand why it fits.

Not Just for Sézane

Once you’ve created a profile, Tellar also shows your accurate size in:

Reiss
Massimo Dutti
Whistles
GANNI
Mango
COS
AllSaints
Zara
Free People
…and 1,500+ brands.

Final Thoughts

Sézane sizing often runs small, especially in structured or woven items. While the brand’s design language is beautiful and refined, the sizing can be restrictive if you don’t match the expected shape.

Tellar.co.uk removes the guesswork completely. By matching your real shape to Sézane’s actual garment logic, you’ll get personalised sizing for every style—and avoid disappointment, delays, or returns.

“Find your size in 1,500+ brands real-time. It’s Free & Easy.”

Try it now:

👉 Create your free profile

👉 Log in anytime to view your size instantly

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