St. Agni Size Guide: Clothing, Shoes and Fit by Style

St. Agni clothing uses Australian sizing, which matches UK sizing: XXS is an AU and UK 4, a US 0 and an EU 30, up to XL, which is an AU and UK 14, a US 10 and an EU 40. Shoes are cut on European sizing, and Coveti lists them in EU 35 to 42. Most St. Agni pieces on our designer clothing page follow the chart, but a few styles run large and small, so read the fit note on each one, starting with the examples below and our guide to St. Agni shoes.

St. Agni Clothing Size Chart

This is St. Agni’s own apparel conversion, from the sizing charts page on st-agni.com (checked October 2026).

Body measurements

St. Agni’s body measurement chart, in centimetres:

If your bust and hip fall in different sizes, choose by the part of the body the garment fits closest. That means hip for trousers and skirts, and bust for fitted tops.

Fit by Style: Clothing

The chart is the starting point. Each St. Agni product has its own fit note, and these are the ones that change what you should order.

Tailored trousers

The 90s Rouleau Minimal Pants in Black are a tailored, slim fit in RWS wool. The model is 178cm and wears an S. Order your chart size, and use your hip measurement if you are between two.

Styles that run large

The Silk Adjustable Balloon Pants in Washed Black are noted as running large, with advice to size down. The balloon shape is meant to be roomy, so going down keeps the volume at the leg without excess at the waist.

Styles with a choice of fit

The Organic Cotton 90s Top in Talco is cut with ease through the body. For a closer fit, size down. The Relaxed Pleat Pants carry the same advice.

Fitted knits

The Superfine Merino Wool Tank in Black is fitted, with a close, second-skin silhouette in RWS merino. Take your chart size; sizing down would make it very tight. The Fine Merino Halter Top, by contrast, is designed with a relaxed fit.

Paired sizes: XS/S and M/L

Some knits and tops come in two combined sizes. The Wool Crew Neck Jumper in Taupe Melange is a relaxed fit sized XS/S and M/L. As a rule, XS/S covers XXS to S on the chart and M/L covers M to XL, though a relaxed knit will sit looser on the smaller end of each pair.

Jeans

St. Agni jeans are sized by inch waist from 24 to 32. The Canvas Classic Mid Rise Jeans in Ecru are a relaxed fit in regenerative cotton. Order your usual denim size.

St. Agni Shoe Size Chart

St. Agni footwear is built on European sizing. This is the brand’s own conversion for the sizes Coveti lists:

A note for US shoppers: the brand’s chart pairs EU 38 with a US 7 and a UK 5, and Coveti uses the same conversion. Both agree on UK 5. If you are a US 7.5, measure your foot and compare against a pair you already own in EU sizing. Use your EU size first, since that is how the shoes are cut.

Fit by Style: Shoes

True-to-size styles

The Everyday Thong in Croc Embossed Black and the Bow Ballet Flat in Black are both noted as fitting true to size. Order your usual EU size.

Styles that run small

The Jelly Flip Flop in Transparent fits small: consider sizing up one full size, and size up two if you are between sizes. The Suede Mule in Coffee runs small too; size up if you are between sizes. For more on how flip flops should sit on the foot, read the best leather flip flops for women.

Woven leather

Woven uppers have less give when new than smooth leather, so the Woven Bow Ballet Flat, Woven Ballerina Flat and Bunto Woven Loafer can feel snug for the first few wears. Our woven ballet flats guide covers how they settle.

Belts and Socks

St. Agni belts come in XS, S, M and L. The Asymmetric Belt in Black follows the same four sizes. Choose the size closest to where you will wear the belt: the waist for dresses, the hip for low-rise trousers. The Cotton Socks come in two sizes, EU 35 to 38 and EU 39 to 42.

How to Use the Model Notes

Most St. Agni product pages say what size the model wears and her height. Across the range, the models are 177cm to 179cm and mostly wear an XS and S. If you are shorter, expect maxi skirts and 7/8 trousers to sit longer on you than in the photos. For the brand story, read Who Is St. Agni?.

Frequently Asked Questions

Does St. Agni use Australian sizing?

Yes. St. Agni sizing is Australian, which matches UK sizing. An AU 8 is a size S, which is a US 4 and an EU 34 on the brand’s chart.

What size is XS in St. Agni?

On St. Agni’s chart, XS is an AU and UK 6, a US 2 and an EU 32. The body measurements for XS are an 80cm bust, a 63cm waist and a 90cm hip.

Do St. Agni shoes run small?

Most do not. The Everyday Thong, Fine Flip Flop and Bow Ballet Flat are noted as fitting true to size. The Jelly Flip Flop fits small, so size up one full size, and the Suede Mule runs small, so size up if you are between sizes.

What US size is a St. Agni EU 38 shoe?

St. Agni’s own chart pairs EU 38 with a US 7 and a UK 5. Both agree on a UK 5. Order by your EU size, and measure your foot against a pair you own if you are between US sizes.

How are St. Agni jeans sized?

St. Agni jeans are sized by inch waist, from 24 to 32. Fits vary by style, from the slim Carpenter Jeans to the relaxed Classic Mid Rise Jeans, so check the fit note on each pair.

Does St. Agni make XXL?

Most St. Agni ready-to-wear at Coveti runs XXS to XL, and some knits and tops are cut XS/S and M/L. The brand’s apparel conversion chart ends at XL, which is an AU and UK 14.