What Is Sizing Like at Marilyn Moore?

Marilyn Moore broadly runs true to size, but its signature slouchy and oversized knits are cut deliberately generous — so if you want a neater finish on the relaxed styles, you'll often want to go down a size. That's the honest headline. This is a London cashmere label that's been quietly making beautiful knitwear for over twenty years, and the fit really does depend on which shape you're reaching for. Let me break it down properly, because there's a real difference between their crew jumpers and their boxy, oversized pieces.

The Quick Answer on Fit

Marilyn Moore offers UK sizes 6 to 18, and almost everything is knitwear — cashmere, merino and cashmere-merino blends, much of it handmade with yarn from Italy and Scotland. As a stylist, here's how I'd sum up the fit across the range:

Crew and classic styles (think the Shoreditch crew sweater) tend to be true to size and sit just below the waist. Take your usual UK size.
Slouchy and "Dublin" boxy sweaters are cut for a super-relaxed, oversized look. The brand itself notes that some customers prefer to go down a size for a neater fit.
Tunic-length pieces (like the Galway) run around 70cm long — genuinely oversized, made to be worn loose over jeans.
Average sweater length sits around 60cm, so on a petite frame several styles will read as a relaxed tunic rather than a hip-length jumper.

My Honest Take as a Stylist

I'll be candid: the first slouchy cashmere jumper I bought in this style, years ago, I sized up out of habit — I assumed "cosy" meant "buy big." Big mistake. It swallowed me whole and I looked like I'd borrowed it from someone a foot taller. Lesson learned. With relaxed, boxy knitwear the volume is already built in, so your normal size almost always gives you that effortless, sloped-shoulder drape without the swamping.

The flip side: I once sized down too far on a fine-gauge jumper because I wanted it neat, and it clung in all the wrong places by lunchtime. Cashmere has a little give and warms to the body, so it relaxes as you wear it. My rule of thumb for Marilyn Moore:

Want the intended slouchy look? Take your normal UK size.
Want it neater and more fitted? Drop one size on the oversized and Dublin styles only.
Between sizes? Size down on the boxy cuts, size up on the fitted crews.

One practical note: handle the cashmere gently. Cool hand wash, dry flat, and never wring it. Knitwear that's been stretched out of shape will throw your sizing judgement off entirely, so care is part of fit.

Where Else to Shop for Relaxed Luxury Knitwear

If you love the Marilyn Moore look — soft, slouchy, understated cashmere — here's where I'd send clients across three price points. I've picked these specifically for their knitwear credentials, not just for the sake of a list.

High Street

Uniqlo — the best-value cashmere on the high street, plain and simple. Lovely jumpers at a fraction of the designer price.
COS — minimalist, architectural knits with that same relaxed, slightly oversized sensibility. A natural alternative.
Marks & Spencer — consistently strong cashmere and merino at sensible prices, with a wide size range.
Mint Velvet — relaxed-luxe knitwear with a soft, lived-in feel that's very on-brand for this style.
Hush — effortless slouchy jumpers and a great everyday cashmere edit.
Boden — if you want colour and a bit of pattern in your knits, this is the one.
Seasalt Cornwall — cosy, characterful knitwear with a coastal, easy-wearing fit.

Premium

Brora — the Scottish cashmere specialist and arguably the closest premium match to Marilyn Moore's quality and colour palette.
Toast — artisanal, relaxed knitwear with that same slow-fashion, understated soul.
Me&Em — beautifully considered knits with clever, flattering cuts.

Luxury / Designer

Max Mara — the gold standard for luxury knitwear, with cashmere that lasts a lifetime.
Totême — Scandinavian, elevated and minimal; the dream for slouchy designer knits.
By Malene Birger — refined, fashion-forward pieces with real personality.

Two Independents Worth Knowing

And because I always like to point you somewhere a little less obvious:

&Daughter — a family-run British-Irish label making heritage knitwear in Britain and Ireland. Proper, soulful pieces.
Navygrey — a small, independent British knitwear brand doing sustainable, beautifully simple cashmere and lambswool in limited runs.

How Tellar Takes the Guesswork Out

Sizing shouldn't be a gamble, especially at cashmere prices. Tellar.co.uk is the UK's leading sizing tool: match your body to over 1,500 brands instantly and never squint at a size guide again.

Measure once — using your bust, waist, hip, or simply a brand size you already own.
Use the Store Size Lookup tool to get your precise size in any brand — COS, Reiss, Everlane, Arket and more.
Always free, no downloads, works straight in your browser: tellar.co.uk

There's also the Tellar Fashion Hub — a library stacked with free posts from our top stylists. Honest, unbiased, independent and always free. Style advice, top picks and the best brands, all in one place.

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Written by Ella Blake, Senior Fashion Stylist & Founder of Tellar.