Isabel Marant Size Guide: French, UK and US Sizes for Clothing, Shoes and Belts
Isabel Marant Size Guide: French, UK and US Sizes for Clothing, Shoes and Belts
By Gemma Deeks, Coveti Fashion Editor. Updated 14 October 2026.
Isabel Marant sizes its clothing in French sizes, which run two above UK sizes: a FR 38 is a UK 10 and a US 6. Shoes come in EU sizes, belts in centimetres and some jewellery in T1 and T2. The brand publishes no general correction, so take your usual size and use the table below to convert.
Clothing size conversion
| Isabel Marant (FR) | UK | US | IT | Letter |
|---|---|---|---|---|
| 32 | 4 | 0 | 36 | XXS |
| 34 | 6 | 2 | 38 | XS |
| 36 | 8 | 4 | 40 | S |
| 38 | 10 | 6 | 42 | M |
| 40 | 12 | 8 | 44 | L |
| 42 | 14 | 10 | 46 | XL |
| 44 | 16 | 12 | 48 | XXL |
Shoes
| EU | UK | US | Foot length (cm, approx.) |
|---|---|---|---|
| 35 | 2 | 5 | 22.5 |
| 36 | 3 | 6 | 23 |
| 37 | 4 | 7 | 23.5 |
| 38 | 5 | 8 | 24.5 |
| 39 | 6 | 9 | 25 |
| 40 | 7 | 10 | 25.5 |
| 41 | 8 | 11 | 26.5 |
| 42 | 9 | 12 | 27 |
The foot lengths are a general European guide, not Isabel Marant’s own chart. Sneakers, boots, pumps and loafers come in EU sizes, usually 35 to 42; some styles stop at 41. Isabel Marant gives no shoe sizing correction. Pointed Western toes add length in front of the foot by design. See Isabel Marant sneakers, model by model and Isabel Marant boots.
Belts, hats and jewellery
- Belts: sold by length in centimetres, from 70 to 105. Choose your waist measurement plus about 5 cm.
- Caps: sold by head size, 57 and 59 cm.
- Bracelets: T1 is the smaller size and T2 the larger.
How to measure yourself
- Bust: around the fullest part, with the tape level under the arms.
- Waist: around the narrowest part of the torso.
- Hips: around the fullest part, feet together.
- Foot: heel to longest toe, standing, at the end of the day.
Compare your measurements with the size you already wear in a French and Italian label; that is the most reliable guide to an Isabel Marant size.
Fit by category
The fit note on each Coveti product page comes from the brand’s own description, such as “straight fit”, “relaxed barrel fit” and “fitted silhouette”. Read it as a description of the shape, not as an instruction to size up and down. Our older guide to French sizing and French brands covers other Paris labels.
Frequently asked questions
Does Isabel Marant run small?
Isabel Marant publishes no sizing correction. French sizes simply run two above UK, so a FR 38 is a UK 10.
What is a size 38 in Isabel Marant in UK?
A FR 38 is a UK 10 and a US 6.
What size is T1 in Isabel Marant jewellery?
T1 is the smaller bracelet size and T2 the larger. Choose T1 for a slim wrist.
Is Isabel Marant Étoile sized the same as the main line?
Yes. Both lines use the same French sizing.
Do Isabel Marant shoes come in half sizes?
No. They are sold in whole EU sizes, usually 35 to 42.
More Isabel Marant guides
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