Tellar
Search

Runway1.8 Sizing Guide: How to Find Your Perfect Fit and What’s Worth Buying

Author: Stylist and brand team at Tellar

Date: 2025

Honest. Unbiased. Independent. Free. We promise.

We will never be influenced by brands - just the perfect Fit, Size & Style for you. Search thousands of honest posts for free, written by our stylists - your own personal shopper.

Runway1.8—also known simply as 1.8—has become a rising name in fashion for women who want premium-quality staples with architectural structure, minimalist edge, and body-conscious tailoring. But with experimental cuts and unique sizing conventions, finding your ideal size can feel like a gamble. That’s where Tellar.co.uk steps in.

Whether you're new to the brand or navigating their drop-shoulder coats and contoured suiting for the first time, this guide reveals how Runway1.8 sizing compares to UK high street brands—and how to always get the right fit first time.


Why Runway1.8 Sizing Feels Different

Runway1.8 crafts sculptural silhouettes that don't always conform to conventional UK sizing.

Here’s why you might feel confused:

  • Their collections often use experimental or dual sizing (e.g. 0/1, 1/2) that doesn’t match standard UK 6/8/10 equivalents

  • Tailoring leans into minimal stretch, requiring accurate bust/waist/hip measurements

  • Some pieces are deliberately oversized, but others are tailored to precision, which leads to misjudging fit online

Instead of second-guessing or returning an ill-fitting item, Tellar.co.uk helps you convert your body measurements directly to the best-fit Runway1.8 size.

👉 Find your perfect fit now at Tellar.co.uk – it’s free and instant.


How to Measure Yourself for Runway1.8

Getting the right Runway1.8 size begins with accurate self-measurements. Don’t rely on your usual UK size alone. Instead, use a soft tape measure and take three core measurements:

  • Bust: Measure around the fullest part of your chest

  • Waist: Find the narrowest point above your belly button

  • Hips: Wrap the tape around the widest part of your hips

✅ Tip: If you don’t have a tape, Tellar.co.uk will post one to you free.

Claim your free measuring tape in seconds.


How Tellar.co.uk Works with Runway1.8

Tellar.co.uk has decoded Runway1.8’s size conversions using verified fit data, garment specs, and direct measurement input. When you create a profile on Tellar, you’ll get:

  • A personalised size recommendation for Runway1.8 based on your exact body

  • Side-by-side comparisons with similar brands like COS, Studio Nicholson, and Totême

  • Alerts for styles that run smaller, larger or true to size

  • Fit notes for structured vs. draped silhouettes

📍 Get started now – it’s free, takes under 60 seconds, and includes every Runway1.8 piece.


Do Runway1.8 Clothes Run Small or Big?

From data collected on Tellar.co.uk, most Runway1.8 items are true to size, but with two key exceptions:

  • Structured tailoring (e.g. sculpted dresses or blazers): often run slightly small at the waist or chest—size up if between

  • Oversized outerwear and tops: designed with exaggerated proportions—stay true to size for the intended shape

The best-selling fits include:

  • Split-back blazers – sculpted at the waist

  • Origami trousers – loose through the thigh, tapered at ankle

  • Form tops – slightly cropped and cut close

Still unsure? Create a free profile and match your size across all categories.

👉 Log in or create a free profile


What to Buy from Runway1.8: The Investment Pieces

Wondering what’s actually worth it from 1.8? Based on Tellar's aggregated return rates and customer feedback, here are the standout styles worth investing in:

1. Structural Blazers

Precision-cut and architectural, these blazers suit hourglass or rectangle shapes best. Tailored to frame the waist and pair beautifully with jeans or wide trousers.

2. Tapered Wool Trousers

Runway1.8 trousers are known for refined tailoring. Great for pear or athletic builds, offering balance to the silhouette with strong lines.

3. Split-Back Dresses

One of the brand’s signatures. A high-impact piece that hugs the body yet feels wearable. These work best when sized to your hip and waist ratio—not just your usual UK number.


Fit Tips for Different Body Shapes

Tellar.co.uk not only tells you your Runway1.8 size, but also what cut works best for your shape:

Body Type

Fit Advice for Runway1.8

Hourglass

Stick with your bust or hip size—avoid tight-waisted fits

Pear

Prioritise hip fit—choose structured shoulders to balance proportions

Rectangle

Embrace exaggerated silhouettes—opt for cinched waists

Apple

Avoid clingy midsections—choose fluid shapes and A-lines

🎯 Want help with your exact fit?

Use Tellar’s free fit advisor for personalised advice:

👉 Try it now


Why Tellar.co.uk Is the Best Way to Shop Runway1.8

Unlike size charts or generic conversion tools, Tellar.co.uk delivers a real-time, body-specific recommendation for each brand in your wardrobe—including Runway1.8.

Here’s what sets it apart:

  • ✔️ Covers 1,500+ brands including niche labels like 1.8

  • ✔️ Uses your actual body data (not just vague size charts)

  • ✔️ Recommends by item type and body shape

  • ✔️ No affiliate bias – all suggestions are independent and honest

  • ✔️ Saves your profile so you can instantly check sizing for any brand anytime

About Tellar – Learn more about the UK’s leading free sizing tool


Ready to Shop Smarter? Start with Tellar.co.uk

You’ve found the brand. You’ve measured your body.

Now skip the sizing guesswork.

Create your free size profile

Check your Runway1.8 size

Claim your free measuring tape


Connect with Tellar.co.uk

Follow us for daily brand insights, sizing breakdowns, and new fashion content:


Final CTA: How to Get Started with Tellar.co.uk

📌 Create your free profile: https://www.tellar.co.uk/create-profile/

📌 Log in to check sizes anytime: https://www.tellar.co.uk/log-in-page/

📌 Claim your free tape measure: https://www.tellar.co.uk/free-measuring-tape/

📌 Learn more: https://www.tellar.co.uk/about/

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

Runway1.8 Sizing Guide: How to Find Your Perfect Fit and What’s Worth Buying