Sea Size Guide UK: How to Find Your Perfect Fit & What’s Worth Buying
Author: Stylist and brand team at Tellar
Date: 2025
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Sea New York is known for its effortless charm, romantic silhouettes, and wearable luxury—think broderie anglaise blouses, floral maxi dresses, and artisanal craftsmanship. But if you’ve ever fallen in love with a Sea piece online and hesitated because you weren’t sure which size to buy, you’re not alone. Sizing at Sea can vary depending on the style and fabric—so how can you be sure it fits you?
This guide breaks down how to find your perfect Sea size with Tellar.co.uk, what pieces are worth investing in, and how to avoid costly sizing mistakes—especially if you’re shopping from the UK.
Why Sea Sizing Can Be Tricky
Sea's pieces are beautifully constructed, often with intricate details like puff sleeves, lace panels or smocked waists. But these embellishments—paired with delicate materials like cotton voile and linen—can cause variations in fit across collections.
Many UK shoppers report:
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Their usual UK size feels small in Sea’s fitted blouses.
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Midi dresses fit true to size in the waist but tight in the bust.
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Trousers and jumpsuits often run long and slim.
To eliminate the guesswork, Tellar.co.uk compares your actual body measurements to sizing data across 1,500+ brands, including Sea, giving you a personalised recommendation.
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It’s 100% free to use. No ads. No sales tricks. Just expert advice based on your body, your brands, and your goals.
How to Measure Yourself Accurately
Tellar.co.uk is powered by real measurements, not guesses. To get your best Sea size recommendation:
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Bust: Measure around the fullest part of your chest.
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Waist: Measure at your natural waist (usually 1" above your belly button).
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Hips: Measure around the fullest part of your bum.
Use a soft measuring tape (or request one here) and wear tight-fitting clothes or underwear for best accuracy.
Don’t worry—Tellar.co.uk stores your data securely and privately, so you only need to do this once.
Sea Size Conversion: UK vs US Sizing
Sea is a New York-based brand, and most sizing runs in US sizes. Here’s how they typically convert:
UK Size |
US Size |
Sea Label |
---|---|---|
6 |
2 |
XS |
8 |
4 |
S |
10 |
6 |
M |
12 |
8 |
L |
14 |
10 |
XL |
However, don’t rely solely on conversion charts. Sea’s fitted tops and structured dresses can run one size small—especially for curvier body shapes or larger busts.
With Tellar.co.uk, you’ll see brand-specific guidance, such as:
“Sea dresses run small in the chest. We recommend sizing up for fuller busts.”
What Sea Pieces Are Worth Buying?
Sea is an investment brand with timeless appeal. Here's what our data and community reviews say are best buys:
1. Sea Broderie Anglaise Tops
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Known for eyelet lace, pintucks, and romantic details.
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Worth it if you want wardrobe longevity.
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Fit tip: Slightly snug in the arms—check your upper arm measurement if unsure.
2. Smocked Midi Dresses
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Ideal for spring-summer weddings, brunches, and holiday wear.
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Elastic waists provide flexibility, but bust fit varies.
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Best for pear and hourglass shapes.
3. Tailored Jumpsuits
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Sea jumpsuits are tailored and architectural, great for workwear or events.
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Often run long in the torso and leg, so check your height and rise.
4. Wide-Leg Trousers
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Cut from structured fabrics with high waistbands.
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Great for elongating legs.
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Pair well with cropped Sea blouses.
Explore more Sea brand reviews and size comparisons on Tellar.co.uk.
Real Talk: What Do UK Shoppers Say?
“I love Sea’s details, but sizing is inconsistent. Tellar got it right for me—I ordered the smocked dress in US 6 instead of 4 and it fit perfectly.”
— Imani, UK size 10, bust 34D
“The sleeves are tighter than expected on Sea blouses. So grateful for the Tellar.co.uk warning!”
— Freya, UK size 8
Sizing Tips by Body Shape
Tellar.co.uk also adjusts size advice based on your body shape:
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Petite frames: Avoid Sea’s oversized silhouettes unless styled intentionally.
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Curvy busts: Sea’s non-stretch cotton tops may feel restrictive—size up or choose smocked versions.
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Tall builds: Sea’s midi dresses can run short—Tellar warns if hemlines fall awkwardly for your height.
Want sizing advice tailored to your body shape and preferences? Create your profile now.
Where to Buy Sea in the UK
Sea is stocked by several UK and international retailers:
Before you buy, check Tellar.co.uk for store-specific sizing advice—we track which shops run big or small, and if returns are free.
Why Use Tellar.co.uk for Sea (and Every Brand)?
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✅ Compares your body to 1,500+ brands
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✅ Warns you about size inconsistencies
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✅ Works in cm or inches
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✅ Gives store-specific tips
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✅ No fees, no bias, just facts
Want proof? Check our About Us page, read our brand guides, or follow us below.
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Final Word: Sizing Sorted in Seconds
Whether you’re eyeing a Sea blouse or a smocked dress for summer, sizing doesn’t need to be a gamble. With Tellar.co.uk, you can make smarter purchases, reduce returns, and build a wardrobe that actually fits.
Find your size in 1,500+ brands real-time. It’s free & easy.