St. Agni is the epitome of modern minimalist fashion—effortlessly tailored, consciously crafted, and quietly luxurious. The Australian label is renowned for its clean lines, neutral tones, and wearable silhouettes. But when it comes to sizing, UK shoppers often find themselves second-guessing fit, especially given the brand’s Australian and European sizing blend.
If you’ve ever ordered a St. Agni blazer or dress only to discover it didn’t fit quite right, you’re not alone. That’s where Tellar.co.uk helps—our tool compares your actual measurements to St. Agni’s sizing data and gives you the correct size instantly, based on how their garments really fit.
Why St. Agni Sizing Can Be Difficult to Gauge
St. Agni garments are deliberately tailored with a relaxed but intentional fit. However, their sizing system—typically Australian/European—doesn’t always align cleanly with UK standards.
You’ll often encounter:
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AUS sizing labelled as EU/FR (e.g., size 36 = UK 8)
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Variability between tailored pieces and oversized separates
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No clear size chart per product category
What looks like a fluid, oversized shirt on the model might fit much more snugly across your shoulders or bust. Or a slinky bias-cut dress might feel too short in the torso if you’re taller than average.
🔗 Compare this with similar structured brands like Totême or Helmut Lang
St. Agni Size Conversion Chart
Below is a general conversion guide from St. Agni (AU/EU sizing) to UK:
| St. Agni Size (AU/EU) | UK Size | US Size |
|---|---|---|
| 34 | 6 | 2 |
| 36 | 8 | 4 |
| 38 | 10 | 6 |
| 40 | 12 | 8 |
| 42 | 14 | 10 |
| 44 | 16 | 12 |
But this is only a baseline. Fit often depends on cut, fabric, and how each item is meant to drape.
🔗 Tellar.co.uk can do this automatically—based on your actual measurements
What to Expect from St. Agni Fit – Category Breakdown
1. Blazers and Tailored Jackets
These typically follow a structured, European-inspired cut. Slim through the shoulders and arms, they are not overly generous, even when described as “relaxed.”
Fit Tip: If you have broader shoulders or prefer a less restricted fit, go up one size. Tall frames may find sleeves slightly short.
2. Shirts and Oversized Tops
St. Agni is known for oversized silhouettes. These pieces are designed to drape—but often run true to size across the bust and shoulder.
Fit Tip: Stick to your standard UK size for that effortless, fluid look. Sizing down may remove the intended volume.
🔗 Compare to similar oversized labels like COS
3. Trousers & Tailored Bottoms
Tailored trousers are sharply cut, with high waists and often narrow hips. Linen blends may have less stretch than expected.
Fit Tip: Prioritise your waist and hip measurement when choosing sizes. If you’re curvy or in between, size up to avoid pulling across the hips.
4. Dresses
St. Agni dresses are often minimalist slips or structured wrap silhouettes. They’re elegant, but can feel short-waisted or narrow through the chest depending on your build.
Fit Tip: Check the garment length if you’re over 5’7”. Bias-cut styles may hug curves more than the product images suggest.
5. Footwear
St. Agni shoes are typically listed in European sizes. They run true to size, though narrow-fitting styles may feel snug across the forefoot.
🔗 Use Tellar to compare to sizing in labels like Isabel Marant or Massimo Dutti
How to Measure for St. Agni
For precision, grab a soft measuring tape and take these measurements:
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Bust – Around the fullest part of the chest
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Waist – Narrowest part of your torso
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Hips – Widest part across the seat
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Shoulders – If you’re often between sizes, this makes a difference for tailoring
Once you’ve measured, simply enter your details at Tellar.co.uk. Our system will instantly match you to the most accurate St. Agni size and give you real-time recommendations across other similar brands.
Does St. Agni Run Small or Large?
It depends on the category:
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Structured tailoring (blazers, trousers) – Can run small, especially across the shoulders or hips
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Oversized shirts and knitwear – Typically true to size or slightly generous
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Slip dresses and tailoring – Often cut narrow with minimal stretch
The safest approach is to base your selection on measurements—not assumptions.
🔗 Use Tellar’s store size tool to find your best match
Related Brands You Might Like
Love the minimalist aesthetic of St. Agni? These brands have similar sizing challenges and style language:
Want the Right Size First Time?
At Tellar.co.uk, we’ve made it simple to shop minimalist luxury brands like St. Agni without worrying about sizing mismatches.
Use our free tool to:
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Enter your body measurements once (in cm or inches)
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Get instant size recommendations in St. Agni and 1,500+ brands
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See garment category-specific advice (e.g. blazers vs dresses)
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Avoid the cost and hassle of online returns
Whether you’re buying your first St. Agni coat or refining your capsule wardrobe, we’re here to make sure everything fits as beautifully as it looks.
Follow Tellar.co.uk for More Sizing Advice
Stay ahead of the sizing curve with fit breakdowns, comparison guides and fashion insights.
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Shopping St. Agni? Let Tellar match your measurements to the perfect size.
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