Sundae Clothing: How to Find Your Perfect Size and What’s Worth Buying
Author: Stylist at TellarDate: 2025
Sundae is one of the UK’s fastest-growing contemporary fashion brands, known for relaxed fits, floaty silhouettes, and a laid-back, feminine aesthetic. But when it comes to sizing, shoppers often struggle—whether it’s oversized styles, boxy fits, or fabric shrinkage after washing. If you love Sundae’s aesthetic but want to get your size right first time, this guide is for you.
Let’s explore how to size Sundae clothing correctly, which pieces are worth buying, and how tellar.co.uk makes it easy to match your body to their sizing—free of charge.
Why Sundae Sizing Can Be Hit or Miss
Sundae’s sizing leans towards relaxed fits, but the level of looseness can vary significantly between styles. A size Small in one collection might fit like a UK 8-10, but in another style, it may resemble a UK 12.
Some common complaints include:
Dresses that are tighter across the chest than expected
Oversized tops that swamp petite frames
Inconsistent fits between knitwear and woven items
That’s why real measurements are more important than relying on “usual size” alone. Enter: tellar.co.uk.
🎯 Quick Tip: Create your free profile
to get matched to Sundae’s size chart using your chest, waist, and hip measurements. It only takes two minutes.
How to Measure Yourself for a Perfect Sundae Fit
If you’ve never measured your body before, now’s the time. Grab a soft tape measure (or order one free from Tellar.co.uk
) and follow these steps:Bust – Measure around the fullest part of your chest, keeping the tape level.
Waist – Wrap the tape around your natural waist, just above your belly button.
Hips – Measure around the widest part of your hips and bum.
Once done, log in here
and enter your measurements to see your best Sundae size—plus recommendations across 1,500+ other fashion brands.Sundae Size Chart (Approximate)
While Sundae doesn’t always publish detailed measurements, most of their garments follow this general structure:
UK Size | Bust (cm) | Waist (cm) | Hips (cm) |
|---|---|---|---|
6 (XS) | 80–84 | 60–64 | 86–90 |
8 (S) | 84–88 | 64–68 | 90–94 |
10 (M) | 88–92 | 68–72 | 94–98 |
12 (L) | 92–96 | 72–76 | 98–102 |
14 (XL) | 96–100 | 76–80 | 102–106 |
However, note that many styles are oversized or intentionally loose—so always use your largest measurement as a guide.
Tellar’s Store Size Lookup Tool
removes the guesswork by calculating your best fit in Sundae automatically.What’s Worth Buying from Sundae?
Here’s a breakdown of which Sundae pieces are worth the investment, and who they’re best suited to.
👗 1. Tiered Dresses
Why it’s worth buying: Effortless, forgiving, and summer-ready. The layered design flatters apple, pear, and hourglass shapes.
Fit Tip: These can run roomy—check your size on Tellar first
to avoid over-sizing.🧥 2. Shackets & Oversized Outerwear
Why it’s worth buying: Sundae’s casual coats are great layering pieces.
Fit Tip: If you're petite or narrow in the shoulders, consider sizing down.
👚 3. Boxy Cropped Blouses
Why it’s worth buying: Perfect for high-waisted jeans or skirts.
Fit Tip: Ideal for rectangle or hourglass figures—check your bust measurement with Tellar to avoid gaping.
🧶 4. Knit Co-Ords
Why it’s worth buying: Soft and stretchy, great for lounging or travelling.
Fit Tip: The waistband can be snug; use your waist measurement as the anchor for size selection.
🩳 5. Elasticated Shorts & Flowy Trousers
Why it’s worth buying: Sundae’s bottoms offer great comfort and movement.
Fit Tip: Hip size matters here. Log in to Tellar
to make sure they won’t dig in or fall down.Why Tellar.co.uk is the Best Way to Shop Sundae

With over 1,500 brands mapped to your exact measurements, tellar.co.uk makes it easy to shop Sundae without worrying about returns.
🔍 Here’s How It Works:
Go to Tellar.co.uk/create-profile/
Enter your email and either:
Add your chest, waist, and hip measurements
OR tell us what size you wear in another brand
Instantly see your Sundae fit and how other brands compare
Stay logged in to use your profile across our Store Size Lookup Tool
for future shops
It’s free, easy, and helps you size smart for every purchase.
Sundae Sizing FAQs
❓ Does Sundae run large or small?
Most styles are designed to be relaxed or oversized, meaning they often run large. However, more structured pieces like trousers or waist-fitted tops may run true to size or small.
❓ Can I trust their size labels?
Not really. The same “size 10” may fit differently depending on fabric and style. It’s why Tellar's personalised size matcher
is more accurate than any label.❓ How does Sundae compare to Zara or ASOS?
Sundae is generally more generous than Zara, and less fitted than ASOS. If you’re between sizes in either of those brands, always check using Tellar’s fit recommendation
.Related Posts You’ll Find Helpful
Best Relaxed Fit Brands for Hourglass Bodies
Stay Connected with Tellar.co.uk
Never miss a sizing update, style guide or fashion fit hack—follow us:
Instagram – @Tellarsizing
Pinterest – TellarUK
Facebook – TellarSizing
Twitter (X) – @Tellar100
Find Your Sundae Size Today
Sundae’s relaxed styling doesn’t mean you should compromise on the perfect fit. Whether you're new to the brand or just shopping a new style, tellar.co.uk is your shortcut to confident buying.
💡 Ready to size smarter?Create your free Tellar profile now
and instantly see your perfect size in Sundae and 1,500+ other brands.No guessing. No returns. Just fit that flatters.
Struggling with Sundae clothing sizes? Use Tellar.co.uk’s free sizing tool to match your body to the perfect Sundae fit. Discover what’s worth buying and how to measure yourself.
/blog/sundae-clothing-size-guide-what-to-buy
The Tellar Fashion Hub is the World's Largest, 100% Free, Fully searchable, Fashion Library. Filled with 4000+ Honest & Unbiased posts, written by our expert stylists.
No adverts, no sponsored posts, no subscriptions. We are 100% free to use.
We are paid by affiliates, but we never allow brands to influence our recommendations.
Honest, Unbiased, Accurate & Free.
