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What’s My Clothes Size at Seasalt? Does Seasalt Run Big or Small?

Author: Stylist and brand team at Tellar

Date: 2025

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What’s My Clothes Size at Seasalt? Does Seasalt Run Big or Small?

Seasalt Cornwall is one of the UK’s most loved sustainable fashion brands—known for its coastal-inspired colours, hand-drawn prints, relaxed cuts, and commitment to natural fibres like organic cotton and linen. Whether you’re buying a striped tunic, waterproof jacket, or jersey day dress, Seasalt is all about practical, breathable, easy-going style.

But one common question remains:

Does Seasalt run big or small?

And how can you find your correct size—especially online where relaxed fits and unstructured shapes can make things confusing?

This post explains how Seasalt sizing works—and introduces Tellar.co.uk, the UK’s most accurate free sizing tool that calculates your exact Seasalt size in real time, based on your body measurements and the brand’s fit patterns.


Does Seasalt Run Big or Small?

Seasalt generally runs true to size or slightly large, depending on the style.

Key fit observations:

  • Relaxed-fit tops, tunics and jersey dresses tend to run roomy

  • Structured dresses, fitted waists and tailored trousers run closer to true size

  • Waterproof coats and rainwear are cut with layering room, making them slightly oversized

  • Petite and Tall collections offer good proportional adjustments, but sizing width remains consistent with regular fit

If you're between sizes or prefer a closer fit, it’s often best to size down—especially in relaxed, A-line or smock silhouettes.


Why Seasalt Sizing Can Feel Tricky

Seasalt designs for comfort, movement and layering—which is great for versatility, but makes sizing more difficult to judge by chart alone.

1. Relaxed Fit Philosophy

Many tops and dresses feature:

  • Drop shoulders

  • Flared hems

  • Unstructured lines

    These styles are forgiving—but may feel oversized if you prefer a closer fit.

2. Natural Fibre Fabrics

Seasalt often uses:

  • Organic cotton jersey

  • Linen

  • Cotton voile

  • Corduroy and denim

    These fabrics are breathable and beautiful, but often have no stretch, meaning size precision matters more in tailored or fitted garments.

3. Subtle Shape Differences Between Ranges

Some ranges are boxy, while others (e.g. fitted shirt dresses or cord skirts) offer more structure. Without trying them on, it’s hard to tell—which is why Tellar.co.uk is so useful.


Seasalt Fit Overview by Garment Type

Garment Type

Fit Pattern

Tellar Sizing Tip

Tunics & relaxed tops

Roomy and longline

Size down for a neater silhouette

Jersey dresses

Soft, stretchy, A-line

True to size or down if petite

Tailored dresses

Fitted at bust/waist

True to size or size up if curvy

Trousers & cords

High-rise, structured

True to size or up for hip comfort

Waterproof jackets

Relaxed, designed for layering

Stick to size or down if slim-built

Knitwear

Regular to generous fit

True to size or down for close fit


Seasalt Size Chart (UK)

UK Size

Bust (cm)

Waist (cm)

Hips (cm)

6

80

63

88

8

84

67

92

10

88

71

96

12

93

76

101

14

98

81

106

16

103

86

111

18

108

91

116

20

113

96

121

22

118

101

126

This chart offers a helpful baseline—but it doesn’t tell you:

  • How a linen smock differs from a cord pinafore

  • Where the garment is designed to fit (e.g. bust vs. waist vs. hips)

  • How your proportions affect the result

That’s where Tellar.co.uk becomes essential.


Tellar.co.uk: The Smartest Way to Find Your Seasalt Size

Tellar.co.uk is the UK’s leading free sizing tool. It uses your real body measurements to calculate the correct Seasalt size for each garment category in real time—factoring in:

  • Cut

  • Fabric stretch

  • Silhouette (relaxed, tailored, A-line, etc.)

  • Your unique proportions (bust, waist, hips)


How It Works

  1. Visit www.Tellar.co.uk

  2. Create your free profile

  3. Enter your bust, waist and hips (in cm or inches)

  4. Select Seasalt Cornwall from the brand list

  5. Instantly see your accurate size across dresses, coats, knits, tops, and more

Tellar also works for 1,500+ other brands, using the same profile.


Why Tellar Works So Well for Seasalt

✅ Garment Logic Awareness

Tellar understands that a Seasalt smock dress fits differently from a jersey wrap—and adjusts accordingly.

✅ Body Shape Matching

Tellar uses your most relevant measurement for each garment type—for example:

  • Hips for trousers and skirts

  • Bust for fitted tops

  • Waist for tailored dresses

✅ One-Time Setup

No need to re-measure or re-enter. Just log in, click a brand, and get accurate sizing instantly.

✅ Completely Free

No subscriptions, no fees. Just personalised, accurate sizing, whenever you need it.


Example: UK Size 12 Shopper

Measurements:

  • Bust: 91cm

  • Waist: 74cm

  • Hips: 101cm

Tellar might recommend:

  • Seasalt jersey dress: UK 12

  • Seasalt linen tunic: UK 10 (relaxed cut)

  • Seasalt waterproof coat: UK 12

  • Seasalt high-rise trousers: UK 14 (for comfort at hip)

Each size is accompanied by a brief explanation based on your shape, garment structure and fabric.


Not Just for Seasalt

Once your profile is created, Tellar also works for:

  • Boden

  • TOAST

  • FatFace

  • Brora

  • White Stuff

  • Baukjen

  • Me+Em

  • Finery

    …and over 1,500 other brands—instantly.


Final Thoughts

Seasalt Cornwall generally runs true to size with a relaxed, comfortable fit, especially in jersey and linen styles. However, more structured pieces—like tailored dresses or high-waisted cords—may require sizing up for curves or down if you prefer a neater fit.

Tellar.co.uk removes the guesswork. It gives you precise size recommendations for every garment type based on your exact measurements and the brand’s fit logic.


“Find your size in 1,500+ brands real-time. It’s Free & Easy.”


Try it now:

👉 Create your free profile

👉 Log in anytime to view your Seasalt size instantly

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Instagram: @Tellarsizing

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What’s My Clothes Size at Seasalt? Does Seasalt Run Big or Small?