Sister Jane Size Guide: What Size Am I in Sister Jane? Fit Advice & UK Sizing Help
Author: Stylist and brand team at Tellar
Date: 2025
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Vintage-Inspired Sizing Explained | Tellar.co.uk
Whimsical, Retro, and Full of Ruffles — But How Does Sister Jane Fit?
Sister Jane has made a name for itself with vintage silhouettes, dramatic details, and feminine flair. From statement puff-sleeve blouses to brocade mini dresses and embroidered jackets, the brand is unmistakably bold — but what about the sizing?
What size am I in Sister Jane?
It’s a common question — and the answer depends on how the brand balances volume, fabric structure, and fit.
🧵 Want your best Sister Jane fit in seconds? Create your free profile at Tellar.co.uk and find your size in thousands of brands, including Sister Jane. It’s quick, free, and includes a printable measuring tape. We’ve analysed every brand’s size data so you never have to check a chart again.
Does Sister Jane Run Small or Large?
Sister Jane designs are often voluminous by nature, with dramatic silhouettes and layers of structure. However, the underlying fit is tailored — meaning that many items still run small, especially around the bust, shoulders, and high waist.
The brand uses UK sizing, but pieces with zips or woven fabrics tend to feel more fitted than expected. Relaxed styles and oversized dresses are more forgiving.
Sister Jane Fit Overview:
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Mini & Midi Dresses: Often run small in the chest, even if voluminous elsewhere.
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Blouses & Tops: Shoulder seams are often high — size up if broader-shouldered.
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Trousers & Skirts: High-waisted and fitted at the waist — size up if curvy or in-between.
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Oversized Pieces: These can be true to size, but often short in length.
🎯 Tellar shows your exact Sister Jane size and compares it to thousands of other brands
Sister Jane UK to International Sizing
UK Size |
Sister Jane Label |
EU Size |
US Size |
---|---|---|---|
UK 6 |
XS |
EU 34 |
US 2 |
UK 8 |
S |
EU 36 |
US 4 |
UK 10 |
M |
EU 38 |
US 6 |
UK 12 |
L |
EU 40 |
US 8 |
UK 14 |
XL |
EU 42 |
US 10 |
Note: Some structured dresses or lined blouses may feel smaller than standard UK sizing — especially in the arms, shoulders, or chest.
Sizing by Garment Type
1. Dresses
Sister Jane’s dresses are often their most detailed and fitted items. Think puff sleeves, brocade fabrics, high necklines, and mini cuts. Even though they appear floaty, they’re usually tight at the upper bust, ribcage, or sleeve hem.
🟣 Tip: If you have a fuller chest or broader shoulders — size up.
2. Blouses & Shirts
Heavily ruffled, with wide collars or big sleeves. Often fitted in the neck or shoulders, even if they look boxy. If the piece has a buttoned back or no stretch, go up a size for comfort.
3. Trousers & Shorts
High-waisted, often short, and typically tailored with darts. Waistbands are fitted — size up if you prefer ease around your midsection or hips.
4. Skirts
Often flared or tiered, but fitted at the waist. Sizing is generally true, but check for side zip or waist band stiffness.
5. Outerwear & Oversized Pieces
More forgiving. These are the most true-to-size pieces, though you may want to size up if layering over thick knits.
📏 Use Tellar’s printable measuring tape and enter your body profile to get matched instantly
Real Fit Feedback from Tellar Users
Item Type |
Runs Small |
True to Size |
Runs Large |
---|---|---|---|
Puff Sleeve Dresses |
✅ |
✅ |
|
Blouses |
✅ |
✅ |
|
Mini Skirts |
✅ |
✅ |
|
Oversized Blazers |
✅ |
✅ |
🧵 Shopping similar playful or retro-inspired brands? Try:
What to Buy from Sister Jane
✔ Puff-Sleeve Dresses
Iconic, romantic, and detailed. Size up if you need bust or arm room.
✔ Ruffled Blouses
Perfect for layering, but fitted in the shoulder — size up if you’re broad-shouldered or want extra comfort.
✔ Tweed Jackets & Mini Skirts
True to size at the waist, but short in length — great with tights. Size up if you’re tall.
✔ Oversized Blazers & Dresses
Relaxed silhouettes that are often roomier. True to size, but still structured in some areas.
🛍 Tellar helps you size Sister Jane correctly — and compare it to thousands of brands
Fit Tips for Sister Jane Shoppers
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Don’t be fooled by volume — even floaty pieces are often tight where it counts (shoulders, bust, arms).
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Check the fabric — woven or brocade = no stretch = size up.
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Tall shoppers beware — lengths are short across dresses, skirts, and sleeves.
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If between sizes, always go up — especially if the item zips or buttons at the back.
🎯 Tellar gives you instant accuracy for Sister Jane and thousands of other fashion brands
Why Tellar.co.uk Is Essential for Buying Sister Jane
Sister Jane has a unique cut — playful in silhouette, but fitted in execution. With no standard fit chart across all collections, guessing often leads to returns.
Tellar solves that by giving you:
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✅ Real sizing based on your body profile
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✅ Brand-specific recommendations for fit and fabric
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✅ Free printable measuring tape
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✅ Instant size matches for thousands of brands
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✅ Always free to use — no account needed to view your result
📏 Create your free Tellar profile now to find your perfect Sister Jane size
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Final Verdict: What Size Am I in Sister Jane?
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Fitted dresses and woven blouses often run small
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Voluminous designs don’t always mean relaxed fit
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If you’re curvier or taller, size up for comfort and length
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Tailored bottoms and skirts fit snug at the waist
🎯 Tellar gives you the most accurate Sister Jane sizing — and your size in thousands of brands
Summary
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