What is IT 40 in US women's size?

IT 40 is a US women's size 4 (Small). Italian size 40 corresponds to EU 40, UK 8, FR 36, and JP 1. This is one of the most common sizes in Italian luxury women's wear.

What is IT 44 in US women's size?

IT 44 is a US women's size 8 (Large). It corresponds to EU 44, UK 12, and FR 40.

What is IT 46 in US women's size?

IT 46 is a US women's size 10 (XL). It corresponds to EU 46, UK 14, and FR 42.

What is IT 50 in US men's size?

IT 50 is a US men's size 40 (chest in inches), a Large — the most common size in Italian luxury suits. It corresponds to EU 50 and UK 40.

How do Italian clothing sizes compare to US sizes?

Italian women's sizes run approximately 34 numbers higher than US sizes. IT 38 = US 2, IT 40 = US 4, IT 42 = US 6, IT 44 = US 8, IT 46 = US 10, IT 48 = US 12. For men, IT/EU sizes like 46, 48, 50, 52 correspond to US 36, 38, 40, 42 chest measurements in inches.

Do luxury brands like Loro Piana and Brunello Cucinelli use Italian sizing?

Yes. Most Italian luxury brands including Loro Piana, Brunello Cucinelli, Zegna, Kiton, Isaia, Canali, and Brioni use Italian (IT) sizing, which is identical to EU sizing for clothing. Always check the tag — some pieces list both IT and EU.

Does Brunello Cucinelli run small or large?

Brunello Cucinelli generally runs generous, especially in outerwear and knitwear. Many buyers size down one from their usual IT size. The knitwear is cut with ease for layering. Always check garment measurements rather than relying on the size label alone.

Does Akris Punto run small?

Yes — Akris Punto runs small, particularly through the shoulder and upper chest. A size 8 in Akris Punto typically fits a US 4 to 6. Buyers coming from American brands often need to go up one to two sizes. Always request shoulder-to-shoulder measurements for any structured piece.

Size Guide

What your US size is
everywhere else.

Q: What is IT 42 in US women's size?

IT 42 is a US women's size 6 (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.

Q: What is EU 50 in US men's size?

EU 50 (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. So IT 48 = US 38, IT 50 = US 40, IT 52 = US 42.

Italian, EU, UK, French and Japanese sizing, converted from the size you already know. Then see what is in stock in it right now.

Which US size do you wear?

Tap a size — or tap any row in the chart below.

What’s your US chest size?

The number on a US jacket — it’s the chest in inches. Tap a size, or tap any row below.

Women's clothing sizes

IT and EU are identical for women’s clothing. FR runs 4 numbers below IT.

US	IT / EU	UK	FR	JP	Letter
2	38	6	34	—	XS–S
4	40	8	36	1	S
6You	42	10	38	2	M
8	44	12	40	3	M
10	46	14	42	4	L
12	48	16	44	5	L

IT and EU are numerically identical for women’s clothing: a garment tagged IT 42 and one tagged EU 42 are the same size. French sizing runs four numbers below: IT 42 = FR 38.

Read from the Italian label: IT 38 = US 2 · IT 40 = US 4 · IT 42 = US 6 · IT 44 = US 8 · IT 46 = US 10 · IT 48 = US 12

Brand Notes

How these women’s brands fit in your size

Generalizations based on observed fit. When in doubt, request measurements from the seller.

Loro Piana

True to IT size

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.

Brunello Cucinelli

Runs generous

Generous cut, especially in knitwear and outerwear. The knitwear is designed to layer over a shirt collar, so chest dimensions have ease built in.

Max Mara

Runs generous

Mainline outerwear is intentionally oversized, designed to layer over suiting. Sub-lines (Weekend, S Max Mara) run closer to standard EU sizing.

Toteme

True to EU size

Straight EU sizing. Silhouettes are intentionally relaxed — true to size, or size down for a closer fit.

Khaite

Runs slim

Ribbed knits and fitted styles run small — size up from your usual. Denim runs closer to true size.

Akris Punto

Runs small

Runs small through the shoulder and torso. Akris mainline cuts narrower still — buyers often go up two sizes from their usual US size.

Dior

FR sizing

French sizing (FR 36 = IT 40 = US 4). Structured pieces often run small. Tailoring from the Galliano era runs particularly narrow through the shoulder.

The Row

Runs large by design

Uses XS / S / M / L labels rather than numbers. Fits run oversized intentionally — most buyers find their usual size or size down. Coats are designed to be worn large.

Shop your size

Everything below is live inventory in your size. One of one, never restocked.

Women's shoe sizes

IT and EU are identical for shoes.

US	IT / EU	UK	JP (cm)
5	35	2.5	22
6	36	3.5	22.5
7	37	4.5	23.5
8	38	5.5	24
9	39	6.5	25
10	40	7.5	25.5
11	41	8.5	26.5

Women's FAQ

Women's 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 42 is a UK women's size 10. It also corresponds to EU 42, US 6, and FR 38. UK women's sizes run 4 numbers below IT/EU — so IT 40 = UK 8 and IT 44 = UK 12.

A US women's size 6 is an Italian (IT) 42, the same as EU 42 and UK 10. To convert US to IT for womenswear: US 4 = IT 40, US 6 = IT 42, US 8 = IT 44.

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.

Men's clothing sizes

IT and EU are identical for men’s. The US number is the chest in inches; add 10 and you have the IT size.

US chest	IT / EU	UK	Shirt collar	EU collar	Letter
36	46	36	15	38	XS–S
38	48	38	15.5	39	S–M
40You	50	40	16	41	M–L
42	52	42	16.5	42	L–XL
44	54	44	17	43	XL–XXL
46	56	46	17.5	44	XXL

Add 10 to your US chest and you have the IT or EU number: US 40 = IT 50. UK tailoring uses the same inch measurement as the US. Jacket length (S, R or L) is a separate dimension from the chest and does not convert.

Read from the Italian label: 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

Brand Notes

How these men’s brands fit in your size

Generalizations based on observed fit. When in doubt, request measurements from the seller.

Ermenegildo Zegna

Standard IT sizing

Standard IT sizing — suits labeled by chest in centimeters (IT 50 = US 40). Cut is moderate through the body.

Brioni

Standard IT sizing

Standard IT numbering, cut fuller through the chest and waist than Kiton. Verify the shoulder — it cannot be altered easily.

Kiton

Runs slim

Standard IT numbering, but a higher armhole and slimmer body than Brioni. Always verify the shoulder measurement.

Boglioli

Runs slim

Runs slim with a high armhole. If between sizes, go up — the jackets are unstructured and will not forgive a tight chest.

Isaia

Runs slim

Standard IT sizing but cuts lean through the waist. The Base S model is the narrowest in the range.

Canali

Runs slim

Standard IT sizing, cut lean. Canali 1934 runs slightly more generous than the standard line.

Loro Piana

Cut for layering

Outerwear is cut to go over a jacket. Knitwear is fully fashioned and runs relaxed through the body — many buyers size down.

Barbour

Cut for layering

Sized for a sweater underneath. A US 40 chest usually wears the 38 unless layering heavily.

Shop your size

Everything below is live inventory in your size. One of one, never restocked.

Men's shoe sizes

IT and EU are identical for shoes. US runs 1 size below UK.

US	IT / EU	UK	JP (cm)
7	40	6	25
8	41	7	26
9	42	8	27
10	43	9	28
11	44	10	29
12	45	11	30
13	46	12	31

Men's FAQ

Men's size questions

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.

IT 48 is a US men's size 38 (chest in inches), a Medium. It corresponds to EU 48 and UK 38. Subtract 10 from the IT/EU number to get the US chest size.

IT 50 is a US men's size 40 (chest in inches), a Large — the most commonly listed size in secondhand Italian luxury suits. It corresponds to EU 50 and UK 40.

IT 52 is a US men's size 42 (chest in inches), an XL. It corresponds to EU 52 and UK 42.

IT 54 is a US men's size 44 (chest in inches), an XXL. It corresponds to EU 54 and UK 44.

FAQ

Sizing questions, whichever chart you came for

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.

What your US size iseverywhere else.

Women's clothing sizes

How these women’s brands fit in your size

Shop your size

Women's shoe sizes

Women's size questions

Men's clothing sizes

How these men’s brands fit in your size

Shop your size

Men's shoe sizes

Men's size questions

Sizing questions, whichever chart you came for

What your US size is
everywhere else.