What Is Sizing Like at Quinn?

By Ella Blake — Fashion Stylist | Tellar Fashion Hub — Always honest, unbiased & unsponsored

Quinn sizes in US letter sizing — XS through XXL — and runs true to size for most women, though the cut is slim and close-fitting, so if you prefer your knitwear with any ease or breathing room, sizing up one is absolutely the right call. I've been recommending Quinn to clients for a while now and the fit question comes up every single time, so let's go through it properly.

So, Who Is Quinn?

If cashmere is your thing and you haven't come across Quinn yet, you're in for a treat. Quinn is a New York-based luxury cashmere brand that has built a quietly passionate following for its use of Grade-A Mongolian cashmere — the really good stuff — at prices that sit noticeably below the big heritage names. The brand launched with the premise that exceptional cashmere shouldn't cost a fortune, and it has largely delivered on that promise.

The range is fairly focused: jumpers, cardigans, hoodies, joggers, and sets in an array of really beautiful colourways. Muted earthen tones, rich jewel shades, the kind of colours that you can see instantly working hard in a real wardrobe rather than just looking pretty in a flat lay. The quality of the yarn is genuinely impressive — soft, fine, and with that weightless warmth that distinguishes real cashmere from the blended imposters you find on the high street. I ordered a crew neck in terracotta last autumn and it became the jumper I reached for on repeat all season. That, for me, is the test a piece has to pass.

Quinn Size Guide — How to Find Your Fit

Quinn uses US letter sizing across its range. Here's how that maps to UK and EU sizing, along with approximate measurements to help you land on the right size:

Quinn SizeUK Dress SizeEU SizeBust (inches)Waist (inches)Hips (inches)XS6–834–3632–34"24–26"34–36"S8–1036–3834–36"26–28"36–38"M10–1238–4036–38"28–30"38–40"L12–1440–4238–40"30–32"40–42"XL14–1642–4440–42"32–34"42–44"XXL16–1844–4642–44"34–36"44–46"

My honest advice: Quinn's cuts are designed to sit close to the body — this is not a brand that does the oversized, dropped-shoulder thing by default. The XS and S in particular are cut quite narrowly through the bust and shoulder. If you are fuller in the bust, or if you simply like your knitwear to feel relaxed and lived-in rather than snug, go up one size. You'll get a much better drape and the piece will actually look more expensive, not less.

Style by Style — Does the Fit Vary?

Quinn keeps its range nicely edited, which makes navigating it easier. Here's what I've found across the different styles:

Crew necks & classic jumpers — The most popular pieces in the range, and the ones I hear about most from clients. These are cut slim and slightly cropped — not drastically so, but they sit at the hip rather than covering it. True to size gives a sleek, pulled-together look. Size up for an easier, more relaxed fit that still looks polished. Both are valid choices — it just depends on how you want to wear it.
Cardigans — Slightly more generous in cut than the pullovers. These tend to have a little more ease built in, which makes them true-to-size friendly even for women who are fuller in the bust. The buttons sit flat without pulling at true size in most cases, which is often the test I apply.
Cashmere hoodies — A brilliant Quinn offering and one of the pieces that really sets them apart. These are more relaxed in fit than the classic jumpers — deliberately so. True to size will give you a neat, modern silhouette; sizing up gives you that gloriously cosy, oversized-without-trying look. I'd go up one on these every time — a cashmere hoodie that's slightly too roomy is infinitely better than one that feels tight at the shoulders.
Sets — jogger & jumper co-ords — Quinn does beautiful matching sets that have been all over my Instagram feed for two seasons running. These are designed as coordinated pieces and the sizing is consistent across both items. Order the same size for both. The joggers have a comfortable elasticated waist with real stretch in it, so they're very forgiving. If you're unsure, true to size is your best starting point.
Turtlenecks — These run the most slim of all Quinn's cuts. The neck rolls quite high and the body is very close-fitting. I would strongly recommend sizing up one on turtlenecks across the board — it makes a real difference to how comfortable they feel to wear for any length of time, and the slightly looser body actually looks more elegant through the torso.

A Note on Cashmere Care and Why It Matters for Fit

One thing worth flagging with Quinn specifically — as with any premium cashmere — is that how you care for these pieces directly affects how they fit over time. Cashmere can stretch with wear (particularly through the body and cuffs) and can shrink if washed incorrectly. Always hand wash in cool water with a specialist cashmere wash, or use the delicate cycle in a mesh bag. Never tumble dry. Lay flat to dry in its original shape. If you do these things, your Quinn piece will hold its shape and its softness for years. I've seen clients ruin perfectly good cashmere through one careless machine wash — it's not worth the risk.

How to Style Quinn — Getting the Most From Your Cashmere

Quinn's aesthetic is quiet luxury at its best — understated, beautifully made, and completely unfussy. Here's how I'd wear it:

The classic crew neck over wide-leg tailored trousers and loafers is the look that works every single time. It's effortless, it photographs beautifully, and it works from the office to a weekend lunch without any fuss.
Tuck a slim-fit Quinn jumper into a high-waisted midi skirt — leather or satin particularly — and you've got an incredibly chic evening-adjacent look that took about thirty seconds to put together.
The cashmere hoodie over tailored wide-leg trousers with clean white trainers is the casual luxury formula that every fashion editor has leaned on at some point. It works because the contrast between sporty and polished is so well balanced.
Wear the matching sets as they are, or break them up. The joggers with a silk blouse tucked in, or the jumper with dark straight-leg jeans — Quinn pieces are versatile enough to earn their place on their own.

High Street Alternatives to Quinn Cashmere

Pure Grade-A cashmere at the high street price point simply doesn't exist — but these brands do excellent cashmere blends and fine knitwear that captures a similar feeling:

The White Company — The most natural high street match for Quinn's quiet luxury knitwear aesthetic. Their cashmere blends are among the best on the high street, the colourways are beautiful, and the brand consistently gets excellent press for its knitwear. A reliable go-to.
Cos — Brilliant for clean, minimal knits with a real sense of quality. COS doesn't do cashmere but their fine merino pieces have that same sleek, unfussy quality that Quinn does so well.
Hush — A brilliant mid-market option that really understands the quiet luxury customer. Their cashmere and cashmere-blend knitwear is genuinely good quality and the sizing tends to be generous and easy to navigate.
Boden — Particularly good for cashmere and merino knitwear in really joyful colourways. Their quality-to-price ratio for knitwear is one of the best on the British high street.
Whistles — Sophisticated, well-cut knitwear that sits a notch above most high street options. Their fine knits in particular are excellent and they understand the kind of woman who shops Quinn.
M&S — Marks & Spencer's cashmere range is genuinely impressive and consistently well reviewed in the press. It's one of those M&S secrets that fashion people acknowledge privately but rarely shout about. The quality for the price is remarkable.
Jigsaw — Beautiful British knitwear with a properly grown-up sensibility. Their merino and cashmere-blend pieces are well constructed, long-lasting, and styled in a way that feels genuinely editorial.

Premium & Designer Knitwear Alternatives

If Quinn has sparked a love of investment cashmere and you want to explore further up the price ladder:

Claudie Pierlot — French brand doing beautifully crafted knitwear with a Parisian sensibility. Their pieces sit between Quinn and the full luxury tier in terms of price, and the quality is excellent.
Max Mara — One of the great Italian names for luxury knitwear. Their cashmere pieces are masterclasses in quiet, confident dressing — the kind of thing you buy once and wear for a decade.
Me&Em — British premium brand that does genuinely excellent cashmere and fine knitwear at prices that feel fair. UK sizing throughout, which makes life considerably easier.

Two Independent Picks You'll Love

Begg x Co — A Scottish heritage knitwear and woven accessories brand with an extraordinary reputation. Their cashmere pieces are as good as anything in the luxury market and the Scottish provenance story is genuinely compelling. Beautifully made, beautifully packaged — the kind of brand you discover and tell everyone about.
Naadam — A New York-based cashmere brand with a similar origin story to Quinn — exceptional Mongolian cashmere at prices that challenge the luxury incumbents. Their direct-to-consumer model keeps costs down and the quality is superb. Sizing is also US letter and runs comparably to Quinn.

The Final Word on Quinn Sizing

True to size for most styles — but size up one if you're fuller in the bust, if you prefer ease in your knitwear, or if you're buying a turtleneck. The slim cut is intentional and beautiful when it fits properly; the key is just knowing which side of the size boundary you fall on before you order. Use the table above, measure your bust, and don't guess.

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