Does the Brand Ivy Oak Run Big or Small, What Is Their Sizing Like?
Author: Stylist at TellarDate: 2025
Ivy Oak is a Berlin-based fashion label that focuses on timeless, consciously crafted womenswear. With a blend of structured tailoring and romantic flourishes, Ivy Oak appeals to women who appreciate minimalist elegance—but sizing can feel less straightforward, especially for UK shoppers navigating EU charts.
If you read nothing else, know this: tellar.co.uk has already analysed every single brand’s sizing data—including Ivy Oak’s. With a free measuring tape, a one-time quick setup, and real-time access to over 1,500 brands, you'll always get your correct size instantly. No catches, always free to use—so you never need to check a size chart again.
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What Is Ivy Oak Known For?
Founded in 2016, Ivy Oak has quickly built a reputation for:
Refined occasionwear
Modern bridal collections
Conscious, sustainable sourcing
Structured tailoring and flowing silhouettes
Whether you're shopping for a bridal jumpsuit, a clean-lined blazer, or an everyday midi dress, the brand prioritises premium fabrics and sustainability—without compromising on aesthetic impact.
But how do their pieces actually fit? Let’s break it down.
Does Ivy Oak Run Big or Small?
Overall verdict:
Ivy Oak runs slightly small, particularly in tailored dresses, trousers, and structured coats. The cuts are designed to flatter, but they’re also more fitted than standard UK high-street sizing.
Key reasons buyers size up:
Narrow cuts at the waist and bust
Limited stretch in woven fabrics
Shorter torso length in tops and blouses
EU Size | Approx. UK Size | Fit Note |
|---|---|---|
34 | UK 6 | Very slim fit |
36 | UK 8 | Slim fit |
38 | UK 10 | True to size on small frames |
40 | UK 12 | Best for curves |
42 | UK 14 | Rare, sells out fast |
💡 Get Ivy Oak sizing spot-on with the tellar.co.uk, built from thousands of brand-specific measurement matches.
Fit Review by Product Category
1. Structured Dresses
Signature piece: Ivy Oak’s Draped Midi Dress and Bridal Satin Styles.
Fit: Slim around the chest and waist.
Tip: Size up for comfort unless you prefer a sculpted look.
Ideal for: Formal events, weddings, evening wear.
2. Jumpsuits
Often chosen for bridal or alternative occasions.
Fit: Long in the leg, narrow in the torso.
Tip: Measure waist-to-shoulder if you're long-torsoed.
3. Blazers and Tailored Coats
Modern, clean cuts with internal structure.
Fit: Slightly snug across the shoulders and arms.
Tip: Size up for layering over thick knits.
4. Knitwear & Jersey Tops
Softer and more forgiving than structured options.
Fit: True to size, some styles boxy by design.
Tip: Knitwear may feel roomy—don’t overcompensate.
5. Skirts and Trousers
High-waisted, often without elastic.
Fit: Narrow waistband, limited give.
Tip: Size up if you're between waist sizes.
How Ivy Oak Sizing Compares to UK Brands
Want a quick sizing benchmark? Here’s how Ivy Oak stacks up to popular UK high-street and premium labels:
Brand | Compared to Ivy Oak |
|---|---|
Reiss | Similar cut, Ivy Oak slightly narrower |
COS | COS is more relaxed in fit |
Whistles | Ivy Oak runs smaller |
Hobbs | Hobbs is roomier and more classic |
Zara | Zara is less consistent but similar in bust/waist fit |
Looking for similar fits? See our full guides:
Reiss Sizing Guide
Whistles Fit Explained
Zara Size Breakdown
Gucci Sizing Tips
Top Picks from Ivy Oak (and How They Fit)
Here’s what’s worth your money from Ivy Oak’s core collection—and what to know about sizing before you buy.
✦ Ivy Oak Bridal Range
From jumpsuits to satin slip dresses, Ivy Oak’s bridal edit is modern and minimal.
Fit note: Often cut close to the body. Size up for a more forgiving look.
✦ The Signature Draped Dress
Draped across the bust and waist with a high neckline—perfect for events.
Fit note: Tailored and elegant, but snug. Best worn with shapewear or sized up.
✦ Tailored Wool Coats
Their wrap coats and belted jackets are autumn bestsellers.
Fit note: Shoulders are true to EU sizing but UK wearers may prefer one size up for layering.
✦ Occasion Skirts
A-line and midi-length with high waists and side zips.
Fit note: Limited give at the waist—accurate measurement matters.
Why You Shouldn't Rely on Standard Size Charts

Most brands, including Ivy Oak, publish size charts based on idealised ratios. But your actual body measurements (especially bust vs waist vs hip ratio) will determine your real fit.
Tellar.co.uk solves this with data-backed matching technology:
✅ You enter your measurements once
✅ Tellar shows your size in 1,500+ brands (Ivy Oak included)
✅ You can update your profile anytime
✅ Always free to use
✅ Includes a free measuring tape to get started
✅ So accurate, you’ll never need to guess again
Real Reviews from Ivy Oak Customers
“I’m usually a UK 10 but had to size up to a 40 in the jumpsuit. Worth it though—the cut is stunning.”
— Amelia, London
“Love the sustainability angle, but the dress was a bit tight at the bust. Tellar’s fit tool saved me the return.”
— Priya, Birmingham
“The wool coat was gorgeous but narrow in the arms. Go a size up if you're wearing chunky knits.”
— Laura, Glasgow
Related Sizing Guides from Tellar.co.uk
Explore how Ivy Oak fits compared to similar clean-tailored or romantic brands:
Grizas – Flowy but tricky fits
Grace Karin – Occasion dresses decoded
Guess – Fitted casualwear breakdown
G-Star – Structured denim sizing
Stay Sizing-Savvy – Follow Tellar
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Final Word: Should You Shop Ivy Oak?
If you love sharp tailoring, ethically sourced materials, and modern design, Ivy Oak is absolutely worth a place in your wardrobe.
But without checking your true fit, you might end up disappointed.
Use tellar.co.uk to find your Ivy Oak size based on your real measurements—not guesswork.
Try Tellar Now – It’s Free & Accurate
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