Size Guide
IT, EU & US sizes,
converted instantly.
Most luxury pieces on the secondhand market carry Italian or European sizing. This guide covers women's and men's conversions across IT, EU, UK, US, FR, and JP — plus brand-specific sizing notes for the labels Merino tracks.
Quick Converter
Women's
Women's clothing sizes
IT = EU for women's clothing. FR runs 4 numbers below IT.
Women's IT to US quick reference: IT 38 = US 2 · IT 40 = US 4 · IT 42 = US 6 · IT 44 = US 8 · IT 46 = US 10 · IT 48 = US 12.
Italian and EU sizes are numerically identical — IT 42 and EU 42 are the same size. French (FR) sizing runs 4 numbers lower: IT 42 = FR 38. UK sizes run 4 numbers below IT as well: IT 42 = UK 10.
Italian and EU sizes are numerically identical — IT 42 and EU 42 are the same size. French (FR) sizing runs 4 numbers lower: IT 42 = FR 38. UK sizes run 4 numbers below IT as well: IT 42 = UK 10.
| XS | S | M | L | XL | XXL | |
|---|---|---|---|---|---|---|
| IT | 38 | 40 | 42 | 44 | 46 | 48 |
| EU | 38 | 40 | 42 | 44 | 46 | 48 |
| US | 2 | 4 | 6 | 8 | 10 | 12 |
| UK | 6 | 8 | 10 | 12 | 14 | 16 |
| FR | 34 | 36 | 38 | 40 | 42 | 44 |
| JP | — | 1 | 2 | 3 | 4 | 5 |
Women's shoe sizes
IT and EU are identical for shoes.
| IT / EU | 36 | 36.5 | 37 | 37.5 | 38 | 38.5 | 39 | 39.5 | 40 | 41 |
|---|---|---|---|---|---|---|---|---|---|---|
| US | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 11 |
| UK | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 8 |
| JP (cm) | 23 | 23.5 | 24 | 24.5 | 25 | — | 25.5 | — | 26 | 27 |
Men's
Men's clothing sizes
IT and EU are identical for men's. Subtract 10 from the IT/EU number to get the approximate US chest size in inches.
Men's IT to US quick reference: IT 44 = US 34 · IT 46 = US 36 · IT 48 = US 38 · IT 50 = US 40 · IT 52 = US 42 · IT 54 = US 44 · IT 56 = US 46.
US chest sizes for men are measured in inches. IT/EU sizes are approximately 10 numbers higher. So EU 50 = US 40, and IT 52 = US 42. Italian and EU men's sizing are numerically identical.
US chest sizes for men are measured in inches. IT/EU sizes are approximately 10 numbers higher. So EU 50 = US 40, and IT 52 = US 42. Italian and EU men's sizing are numerically identical.
| XS | S | M | L | XL | XXL | 3XL | |
|---|---|---|---|---|---|---|---|
| IT | 44 | 46 | 48 | 50 | 52 | 54 | 56 |
| EU | 44 | 46 | 48 | 50 | 52 | 54 | 56 |
| US (chest in.) | 34 | 36 | 38 | 40 | 42 | 44 | 46 |
| JP | — | 1 | 2 | 3 | 4 | 5 | 6 |
Men's shoe sizes
IT and EU are identical for shoes. US runs 1 size below UK.
| IT / EU | 40 | 41 | 42 | 43 | 44 | 45 | 46 |
|---|---|---|---|---|---|---|---|
| US | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| UK | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| JP (cm) | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
Brand Notes
How brands Merino tracks tend to size
These notes are generalizations based on observed fit. When in doubt, request measurements from the seller.
Runs generous
Loro Piana
True to IT size overall. Knitwear is fully fashioned and runs slightly relaxed through the body. If between sizes, size down. Outerwear is cut for layering. Women's sizing tends to run one size larger than expected.
Runs generous
Brunello Cucinelli
Generous cut, especially in knitwear and outerwear. Many buyers size down one from their usual IT size. The knitwear is designed to layer over a shirt collar, so chest dimensions have ease built in. Always check garment measurements.
Runs large by design
The Row
Uses XS / S / M / L labels. Fits run oversized intentionally — most buyers find their usual size or size down. Coats are designed to be worn large. Always refer to garment measurements when available.
True to EU size
Toteme
Straight EU sizing. Silhouettes are intentionally relaxed — true to size or size down for a closer fit. The scarf coat in particular is designed generous through the body.
Standard IT sizing
Zegna / Kiton / Brioni
Standard IT sizing. Suits labeled by chest in centimeters (IT 50 = US 40). Kiton cuts higher armhole and slimmer through the body than Brioni. Always verify shoulder measurement — it cannot be altered easily.
Runs slim
Isaia / Boglioli / Canali
Standard IT sizing but cuts lean. Boglioli in particular runs slim with a high armhole. If between sizes, go up. Canali 1934 runs slightly more generous than the standard line.
FR sizing
Hermès / Chanel / Dior
French sizing (FR 36 = IT 40 = US 4). Structured pieces often run small — size up when uncertain. Dior tailoring from the Galliano era runs particularly narrow through the shoulder.
Runs small
Akris / Akris Punto
Both lines run small through the shoulder and torso. A size 8 in Akris Punto typically fits a US 4–6. Always request shoulder measurements. Akris mainline cuts particularly narrow — buyers often go up two sizes from their usual US size.
Vanity sizing
St. John
Heavy vanity sizing, especially pre-2007. A labeled size 6 from the 1990s often fits a contemporary US 8–10. Never rely on the size label — always request flat measurements.
Runs generous
Max Mara
Mainline outerwear is intentionally oversized, designed to layer over suiting. A US 8 buyer typically fits an IT 40–42. Sub-lines (Weekend Max Mara, S Max Mara) run closer to standard EU sizing.
True to US size
Theory / Vince
Both run roughly true to US size. Theory shifted to a slightly shorter, more cropped blazer silhouette post-2018. Vince knitwear runs slightly generous. Pre-2015 Vince cashmere was cut fuller than current production.
Runs slim
Khaite
Ribbed knits and fitted styles run small — size up from your usual. Denim runs closer to true size. The Benny boot runs true to EU sizing. When in doubt, cross-reference Khaite's own size chart against garment measurements.
FAQ
Common size questions
IT 40 is a US women's size 4, equivalent to a Small. It also corresponds to EU 40, UK 8, and FR 36. This is one of the most common sizes in Italian luxury women's wear.
IT 42 is a US women's size 6, or Medium. It corresponds to EU 42, UK 10, and FR 38. This is the most commonly listed size in secondhand Italian luxury women's clothing.
IT 44 is a US women's size 8, or Large. It corresponds to EU 44, UK 12, and FR 40.
IT 46 is a US women's size 10, or XL. It corresponds to EU 46, UK 14, and FR 42.
IT 40 and EU 40 are the same size. For clothing, Italian (IT) and European (EU) sizes are numerically identical. IT 40 = EU 40 = US 4 (women's) = UK 8 = FR 36.
Yes — for clothing, Italian (IT) and European (EU) sizing are numerically identical. IT 42 = EU 42. Some garments list both on the tag. French (FR) sizing runs 4 numbers lower than IT/EU: IT 42 = FR 38.
EU 50 (same as IT 50) is a US men's size 40 (chest in inches), which is a Large. The rule of thumb for men's: subtract 10 from the IT/EU number to get the approximate US chest size. IT 48 = US 38, IT 50 = US 40, IT 52 = US 42.
Brunello Cucinelli generally runs generous, especially in outerwear and knitwear. The knitwear is designed to layer over a shirt collar and is cut with ease through the body and chest. Most buyers size down one from their usual IT size. Always check garment measurements rather than relying on the label alone.
Loro Piana knitwear is generally true to Italian size but runs slightly relaxed in the body. If you are between sizes, size down. Outerwear is cut with layering ease built in. Women's sizing tends to run one size larger than expected, particularly in coats. For secondhand purchases, always request flat garment measurements from the seller.
Yes — Akris Punto runs small, particularly through the shoulder and upper chest on structured pieces. A size 8 in Akris Punto typically fits a US 4 to 6. Buyers from American brands often need to go up one to two sizes. Always request shoulder-to-shoulder measurements for any structured jacket or blazer.
Most heritage Italian and French houses — Loro Piana, Brunello Cucinelli, Kiton, Zegna, Hermès — use numeric sizing because it maps more precisely to garment measurements. This is also why secondhand listings almost always show an IT or EU number rather than a letter size.
Yes, for any significant purchase. Sizing within a brand can vary by season or category — a Brunello knit and a Brunello blazer in the same labeled size will fit differently. Flat measurements — chest, length, shoulder — are the most reliable guide when buying secondhand.
Now you know your size
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