Olivia Rubin Sizing Guide: How to Find Your Perfect Fit and What’s Worth Buying

Known for her signature pastel rainbow knits, crystal buttons, and sequin-adorned silhouettes, Olivia Rubin has become a modern British fashion icon. But as stunning as her collections are, getting the right size can be a challenge—especially with the brand’s tailored fits and premium fabrics.

This guide from Tellar.co.uk breaks down everything you need to know about Olivia Rubin sizing: how the brand fits, how to find your exact size using our free sizing tool, and what pieces are actually worth investing in.

Why Olivia Rubin Sizing Can Be Hard to Pin Down

While Olivia Rubin follows UK sizing, many of her pieces are tailored, structured, or made with less stretch, which can lead to unexpected fit issues—especially in dresses, blouses, and button-through skirts.

Common fit challenges include:

Dresses that run small at the bust or shoulders
Skirts that fit at the waist but are snug at the hip
Some tops cut with shorter sleeves or higher necklines

Instead of relying on guesswork or vague size charts, Tellar.co.uk uses your actual body measurements to recommend your perfect Olivia Rubin size—so you don’t have to second-guess.

How to Find Your Olivia Rubin Size with Tellar

✅ Step 1: Create a free sizing profile

You can either:

Enter your bust, waist, and hip measurements
Or select a size in a brand you already know fits you well (e.g. & Other Stories, Rixo, or Self-Portrait)

✅ Step 2: Let Tellar recommend your size

Our sizing algorithm compares your data against Olivia Rubin’s fit specifications and over 1,500+ other brands to give you the most accurate match.

✅ Step 3: Shop confidently

Whether you're buying direct or through stockists like Selfridges, Net-a-Porter, or OliviaRubinLondon.com, Tellar tells you exactly which size to order.

💡 Already a member? Log in now to view your Olivia Rubin match.

How Olivia Rubin Fits (Based on Real Data)

From thousands of Tellar users, here’s what we’ve learned about Olivia Rubin’s typical sizing quirks:

Garment Type	Fit Tendency	Tellar Tip
Dresses	Small at bust and waist	Size up if you have a fuller chest
Blouses	Narrow in shoulders	Use Tellar to ensure shoulder width match
Skirts	True to waist, snug at hip	Match based on largest measurement
Knitwear	True to size	Stretchy, forgiving fit
Outerwear	Generous fit	Often oversized—check shoulder width

What’s Worth Buying from Olivia Rubin?

While Olivia Rubin's full-price pieces sit in the luxury designer bracket, they often justify the cost with unique styling, long wearability, and standout design. Here's what’s worth your money:

1. The Rainbow Sequin Dress

Olivia Rubin’s rainbow sequin dresses are iconic, worn by everyone from influencers to editors. Fitted through the bodice with a structured silhouette, these dresses are special-occasion staples.

Fit Tip: Many users find the zip-up styles run small at the bust. If you’re between sizes, Tellar will advise sizing up.

2. Pastel Knitwear

From ombré jumpers to rainbow-trim cardigans, these pieces are soft, playful, and ideal for everyday wear. Unlike the more structured styles, these knits tend to offer forgiving fits.

Tellar Insight: Most users take their usual size in Olivia Rubin knitwear.

3. Tailored Skirts with Crystal Buttons

High-waisted, vintage-style skirts are a staple in Olivia Rubin’s collection. Many are designed to sit at the natural waist and cut close through the hip.

Fit Note: These skirts often run snug through the seat—check your hip measurement in Tellar before ordering.

4. Co-ords and Blouse Sets

These versatile separates can be worn together or mixed into your existing wardrobe. Some blouses include puff sleeves or shoulder padding, which can restrict movement if the size isn’t spot-on.

Use Tellar to assess both your bust and shoulder width before selecting a size.

How to Avoid Returns (and Save Time)

Returns can be costly—both in money and time. Using Tellar.co.uk means:

No more guessing your size across retailers
No more confusion about UK vs EU sizing
No more multiple orders “just to try”

It’s totally free to use and takes less than a minute to find your fit.

Free Measuring Tape from Tellar

Need help getting your exact measurements?

📦 Order your free Tellar measuring tape (UK only) and take control of your size once and for all. We’ll send it straight to your door, completely free.

Start Your Olivia Rubin Size Journey Today

Whether you're eyeing a pastel sequin dress or a knit jumper, get your Olivia Rubin size right first time with Tellar.

Here’s how:

Create your profile with your measurements
Match to your perfect Olivia Rubin size in seconds
See your size across 1,500+ other brands instantly

🎯 Try it now – it’s free and easy

Related Size Guides from Tellar

Self-Portrait Size Guide
Rixo London Fit Breakdown
How to Measure Your Bust, Waist and Hips Properly
How UK Dress Sizes Compare Across Brands

Why Tellar.co.uk Is Different

We're not a brand. We’re not an affiliate ad network. We're independent, data-driven, and free.

With over 1,700 honest, unsponsored size guides and tools to help you buy better, Tellar is the UK's leading fashion sizing solution.

Learn more about us → About Tellar

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Final Thought

Olivia Rubin pieces are made to be treasured. But no matter how beautiful the garment, it only works if it fits. Avoid the stress of returns, wasted spend, and ill-fitting seams—Tellar gives you size clarity in seconds.

Find your size in 1,500+ brands real-time. It’s free & easy.

→ Start now at Tellar.co.uk