Does Seasalt Cornwall Run Big? The Complete Sizing Guide

Yes, Seasalt Cornwall generally runs large, particularly in their knitwear and casual pieces, with most customers finding they need to size down by at least one size for their signature relaxed coastal aesthetic. As someone who's styled countless clients in this beloved Cornish brand, I've consistently found their sizing to be generous, which actually works beautifully for their laid-back, comfortable approach to dressing.

Having worked with Seasalt Cornwall pieces for years, I've noticed their commitment to creating clothes that feel as good as they look often translates to roomier fits across their range. This isn't accidental – it's very much part of their design philosophy of easy-wearing, coastal-inspired pieces that move with you through your day.

Understanding Seasalt Cornwall's Sizing Philosophy

The brand's generous sizing stems from their Cornwall coastal heritage, where comfort and practicality reign supreme. Their clothes are designed for real life – walking along clifftops, popping to the local market, or enjoying a seaside lunch. This means their cuts prioritise movement and comfort over fitted silhouettes.

Most of my clients find they need to drop a full size in Seasalt Cornwall jumpers and cardigans, and half a size in their dresses and tops. Their famous fisherman-inspired knitwear, in particular, runs very generously – it's designed to be worn as relaxed, layering pieces rather than fitted statement items.

Category-by-Category Sizing Breakdown

Knitwear & Jumpers

This is where Seasalt's generous sizing is most apparent. Their chunky knits and cardigans are designed with significant ease, often running 1-2 sizes large. I always recommend my clients start with a size smaller than their usual and work from there. The brand's signature fisherman jumpers are particularly roomy.

Dresses & Skirts

Seasalt dresses typically run about half to one size large, depending on the style. Their jersey dresses tend to be more fitted than their woven pieces, but still maintain that comfortable ease the brand is known for. Their A-line and fit-and-flare styles are particularly generous through the body.

Jackets & Coats

Outerwear from Seasalt tends to run true to slightly large, as they're designed to layer over jumpers and other pieces. Their waterproof jackets have room for base layers, whilst their blazers maintain a relaxed, unfussy fit that's neither boxy nor restrictive.

Alternative Brands with Similar Sizing

High Street Options

White Stuff - Shares Seasalt's relaxed aesthetic and also tends to run slightly large, particularly in knitwear. Perfect for that same bohemian-meets-countryside vibe.

Fat Face - Another British coastal brand with similarly generous sizing, especially in their casual pieces and outdoor wear. Great for achieving that effortless weekend look.

Joules - Runs similarly generous, particularly in their country-inspired pieces. Their floral prints and countryside aesthetic make them a natural Seasalt alternative.

Monsoon - While their aesthetic differs, their relaxed fits and generous sizing make them worth considering, especially for occasion wear with that same comfortable approach.

M&S - Their Per Una and Collection ranges offer similar comfortable fits, though with more consistent sizing than Seasalt's deliberately relaxed approach.

Boden - Shares that quintessentially British aesthetic and comfortable sizing, particularly in their jersey pieces and casual wear.

Next - More fitted than Seasalt but offers accessible alternatives, particularly in their casual ranges that echo similar design principles.

Premium Alternatives

Toast - An independent British brand offering similarly relaxed, artisanal pieces with comfortable sizing and natural fabrics.

Brora - Scottish luxury knitwear brand with beautifully generous cashmere pieces that share Seasalt's approach to comfortable luxury.

Luxury Options

For those wanting to elevate the coastal aesthetic, consider Gabriela Hearst for luxurious knitwear with similar relaxed proportions, or The Row for minimalist pieces that prioritise comfort and quality over tight fits.

My Professional Sizing Tips

When shopping Seasalt, I always tell my clients to start conservatively. Order your usual size and one size down, then return what doesn't work. Their customer service is excellent for exchanges, and this approach saves disappointment.

Pay particular attention to their measurements rather than just size labels. Seasalt provides detailed size guides, and I've found these to be more reliable than assuming your usual size will work.

Consider the intended look – some of their oversized pieces are meant to be worn large for that effortless, borrowed-from-the-boys aesthetic. Others benefit from sizing down for a more polished appearance.

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The brand's approach to sizing reflects their Cornwall heritage – practical, comfortable, and designed for real life rather than rigid fashion rules. Once you crack their sizing code, you'll find yourself reaching for their pieces again and again for that effortless coastal elegance that never goes out of style.