Celtic & Co: How to Find Your Perfect Size and What’s Worth Buying

Celtic & Co. has earned its reputation as a go-to brand for premium, sustainable knitwear and outerwear. But when it comes to sizing, things can be trickier than expected. Whether you're browsing their sheepskin boots, oversized jumpers, or flowing linen dresses, understanding how Celtic & Co. sizing works is key to buying right the first time.

At Tellar.co.uk, we simplify this process. We compare your body measurements to Celtic & Co.’s sizing chart—and 1,500+ other brands—so you can shop with confidence. This guide walks you through how to get the perfect fit with Celtic & Co., what to buy, and how to use Tellar.co.uk to make your life easier.

Why Celtic & Co. Sizing Can Be Confusing

Celtic & Co. is known for relaxed, oversized silhouettes—particularly in knitwear and loungewear. While this adds comfort and elegance, it also creates uncertainty when choosing a size:

Their jumpers and cardigans are often intentionally oversized
Sheepskin footwear may feel snug at first, but moulds to your feet
Waistbands on trousers and skirts are often elasticated or drawstring, with varying levels of give
Their size chart offers general UK sizing, but product fit varies by fabric and cut

This inconsistency makes it difficult to trust the label alone—especially if you’re between sizes or shopping internationally.

How to Find Your Celtic & Co. Size (Without Guesswork)

Instead of taking a gamble with your next order, use Tellar.co.uk’s free sizing tool. Here’s how it works:

Create a free profile at Tellar.co.uk
Input your measurements (chest, waist, hips), or select a size you know from another brand
Tellar’s algorithm instantly matches your data to Celtic & Co. sizing
You’ll get a recommended size, measurement visuals, and size comparisons across brands

💡 Login here to get started, or request your free measuring tape from Tellar here. It’s free and easy.

What’s Worth Buying from Celtic & Co.?

Once you know your perfect size, here’s what to prioritise in your wardrobe:

1. Sheepskin Slippers & Boots

Celtic & Co.’s sheepskin footwear is handmade in the UK using natural materials. While initially snug, the fit relaxes as the wool compresses. Tellar’s tool helps ensure you don’t size up unnecessarily.

Worth it if: You want comfort, warmth, and craftsmanship that lasts for years. Bestsellers include the Bootee Slipper, Luxe Sheepskin Clogs, and Classic Short Boots.

2. Oversized Knitwear

From merino to lambswool, Celtic’s jumpers and cardigans are deliberately roomy—but sizing is still crucial. The size down or stick to normal? dilemma is solved with Tellar.

Tellar Tip: If you prefer a closer fit, enter your measurements and we’ll tell you whether to go true to size or down one.

3. Linen & Cotton Dresses

Their natural-fibre dresses are perfect for layering or holiday wear. However, many customers report inconsistencies in shoulder width and bust sizing.

Use Tellar to ensure you’re choosing the right fit for your upper body—especially if you have a fuller bust or petite frame.

4. Coats & Outerwear

Known for rugged-yet-stylish outerwear, Celtic coats are investment pieces. Sizing can vary depending on whether a piece is double-faced wool, sheepskin, or waxed cotton.

Tellar recommends checking shoulder width, bust, and sleeve length against our database to avoid costly returns.

Tellar.co.uk vs Traditional Size Charts

Here’s why using Tellar is better than relying on a brand’s size chart:

Feature	Celtic & Co. Size Chart	Tellar.co.uk
Uses your actual measurements	❌	✅
Covers 1,500+ brands	❌	✅
Real-time size match	❌	✅
Converts between CM and Inches	❌	✅
Includes body shape notes	❌	✅
Free to use	✅	✅

Common Sizing FAQs for Celtic & Co.

Do Celtic & Co. clothes run large?

Yes—especially knitwear and loungewear. Many items are designed with a relaxed fit. Tellar can help you determine when to size down.

How do Celtic & Co. boots fit?

They’re snug at first but stretch slightly with wear. It’s essential not to overcompensate by sizing up. Our tool factors in your foot length and brand data to suggest the correct size.

Is Celtic & Co. true to UK sizes?

Generally, yes—but fit depends heavily on cut and material. Their size 12 may not fit the same across dresses, coats, and trousers.

Sizing Up vs Sizing Down: When to Adjust

Let’s say you’re typically a UK 10. Here's when to tweak:

Size Down: Chunky knit jumpers, boxy cardigans, wide-fit linen shirts
True to Size: Sheepskin boots, tailored coats, denim jeans
Size Up: Fitted tops if you’re busty, dresses with fixed waists, narrow-sleeve jumpers

Or skip the guesswork altogether and use Tellar for exact guidance.

How to Get Started with Tellar.co.uk (CTA)

Ready to stop guessing your size and start shopping smarter?

✅ Create your free profile today

✅ Log in here to view your saved sizes

✅ Claim your free measuring tape

✅ Get sizing advice for Celtic & Co. and over 1,500+ brands

✅ Find your size in seconds – it’s Free & Easy

Tellar.co.uk is the UK’s leading free sizing tool. Designed to eliminate returns, boost confidence, and help you shop brands like Celtic & Co. with certainty.

Related Guides and Backlinks

Explore more size-specific advice with our other guides:

How to measure yourself correctly
Why sizing varies across brands
Best sustainable UK brands and how they fit
Shop smarter: size vs body shape

And don't forget to browse our full Brand Sizing Library with 1,300+ guides live now.

Follow Tellar.co.uk for More

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Final Thoughts

Celtic & Co. stands out for its commitment to quality, sustainability, and craftsmanship. But like many premium brands, sizing is not always straightforward.

Don’t risk returns. Don’t rely on guesswork.

Use Tellar.co.uk to get your ideal fit—instantly. Whether you're buying your first pair of sheepskin boots or upgrading your knitwear collection, we'll make sure you pick the right size every time.