The Attico size guide: Italian to UK and US sizes, fit notes and does it run small

The Attico sizes its clothes in Italian sizes, 36 to 46, with letter sizes on knitwear, sportswear and swim and inch waists on some jeans. Luxury Handbags lists every piece on the UK ladder, so an Italian 40 shows as a UK 8. The brand also states, piece by piece, whether to take your usual size: regular-fit pieces do, and on its slim-fit pieces it asks you to take one size larger. Gemma Deeks sets out the conversions, the fit notes and the model measurements so that the order is right first time.

Key facts

• Italian to UK to US: IT 36 = UK 4 = US 00 = XXS; IT 38 = UK 6 = US 0 = XS; IT 40 = UK 8 = US 2 to 4 = S; IT 42 = UK 10 = US 4 to 6 = M; IT 44 = UK 12 = US 8 = L; IT 46 = UK 14 = US 10 = XL.
• Jeans on the inch waist: 24 to 25 = XXS, 26 to 27 = XS, 27 to 28 = S, 28 to 29 = M, 29 to 30 = L, 31 to 32 = XL, per the brand’s own chart.
• Fit notes from the brand: regular fit takes your usual size; slim fit asks for one size larger; fitted styles on the Fay skirt ask for one size larger; oversized and relaxed pieces take your usual size.
• The brand’s model measurements are given on every page: on current pieces the model is 178 cm and wears a size S (IT 40); on older pieces 177 to 179 cm in a size 40.
• At Luxury Shoes , 65 of the 222 pieces in stock have four sizes available; the smaller sizes go first on dresses.
• Swim and knitwear come in XXS to XL letter sizes; the pareos and one skirt are one size.

Converting Italian sizes

The Attico chart is the standard Italian one, two numbers above the French and eight above the British: IT 40 is FR 38 and UK 8. Luxury Handbags shows the UK ladder on every product page so that a customer in London, Sydney, Dubai and New York reads the same scale, and the US equivalent is two sizes below the UK number. If you wear a UK 10 in Zimmermann and Self-Portrait, you wear IT 42 here. The letter sizes map straight across: S is IT 40, M is 42.

Does The Attico run small?

Not as a rule, and the brand tells you when it does. Its regular-fit pieces, which are the majority (the gabardine tailoring, the tops/shirt/" class="cvx-al cvx-al--category">shirts, the jeans, the bombers, the cotton dresses), take your usual size. The slim-fit pieces carry a note recommending one size larger: the zebra bikini and the other swim pieces cut close, the fitted knits, and the Fay canvas mini skirt, which the brand calls fitted. The oversized pieces, the Diana shirt jacket, the joggers and the sweatshirts, are meant to be big and take your usual size. Each Luxury Handbags product page carries the brand’s exact sentence, so read it before choosing.

Dresses

The minis are short by design, with hems well above the knee on a 178 cm model, so if you are tall, check the length on the model photographs. The body-contouring knits, the corset-seamed midi and the jersey and tulle mini, are stretch and forgive; the cady and gabardine pieces do not stretch, so take your measured size. Strapless and lace pieces are the ones to try at home first, because Luxury Shoes ’s 14-day return window covers a change of mind with the security tag intact.

Jeans and pants

The jeans are sold in inch waists from 24 to 32 on most styles, and the wide-leg and double-front pairs are cut to sit on the hip; take your usual inch size. The Fern cargo and the gabardine trousers are in Italian sizes and cut long, so allow for a heel. The drawstring summer pants take your usual size and forgive a size either way.

Knitwear, tops and swim

Knits are XXS to XL and cut with the curved Scoop hem sitting on the hip; the light grey sweater is regular fit. T-shirts come oversized (the oversized black tee) and cropped (the cropped crew-neck), both true to their labels. Bikini tops and bottoms are sold as sets in one letter size; the brand recommends a size larger on the slim-fit swim pieces, and a size that fits the bottoms is the one to choose.

If you are between sizes

Take the larger size on anything the brand calls slim fit and on non-stretch cady, gabardine and leather; take the smaller size on the stretch knits and jersey. Check the model line on the product page: it states the model’s height and the size she wears, which for current pieces is 178 cm in a size S. Our styling guide covers proportions, and the collection at Luxury Shoes shows which sizes are in stock on each piece.

Frequently asked questions

Does The Attico run true to size?

Regular-fit pieces do, and they are the majority. The brand asks you to take one size larger on its slim-fit pieces, including most swim, some knits and the fitted Fay skirt, and says so on each product page.

What is The Attico size 40 in UK sizes?

IT 40 is UK 8, US 2 to 4 and a size S. IT 38 is UK 6 and IT 42 is UK 10.

What size is The Attico 42?

IT 42 is UK 10, US 4 to 6 and a size M. Jeans in the equivalent size are a 28 to 29 inch waist.

How do The Attico jeans fit?

On the inch waist, 24 to 32 on most styles, cut to sit on the hip with a wide leg. Take your usual inch size; the Fern cargo pants are in Italian sizes and cut long.

What size is the model wearing?

On current pieces the model is 178 cm tall with a bust of 80 cm, waist 61 cm and hips 88 cm and wears a size S, which is IT 40 and UK 8. Each product page states it.

Can I return The Attico if the size is wrong?

Yes. Luxury Handbags accepts returns within 14 days with the security tag intact; see coveti.com/faqs/ for the process. The brand itself allows 14 days from delivery.

Read next

The best The Attico dresses. The Attico jeans. The Attico swimwear. The price guide. Shop The Attico at Luxury Shoes .

Gemma Deeks is Fashion Editor at Luxury Shoes . Prices, stock and counts on this page were checked against coveti.com and theattico.com on 14 September 2026.