How to Find Your Size in Autumn Cashmere

BRAND SIZING GUIDE

By Ella Blake | Tellar Fashion Hub

Autumn Cashmere sizes small — and yes, that matters. If you're ordering online and you're between sizes, go up. That single sentence could save you the misery of waiting a fortnight for a parcel only to find the sleeve hits your elbow and the torso is painted on. This is a brand built on some of the finest lightweight cashmere out there, and it deserves to fit you properly.

Who Is Autumn Cashmere?

Autumn Cashmere is a New York-based luxury knitwear label that has quietly built a devoted following among people who take their knitwear seriously. Founded in 1994, it specialises in fine-gauge cashmere — think featherweight jumpers, elegant cardigans, and that rare category of tops soft enough to wear against bare skin. It's the kind of brand that doesn't shout about itself, but once you've felt the quality, it's hard to go back.

The aesthetic sits somewhere between relaxed American prep and European minimalism. Clean silhouettes, subtle colour palettes, and thoughtful detailing. It's not cheap — you're looking at £150–£400 for most pieces — but the longevity is real. I've seen pieces from Autumn Cashmere last ten-plus years with proper care, which is more than I can say for a lot of what passes for "premium" knitwear on the high street.

How Autumn Cashmere Sizing Works

Autumn Cashmere uses US sizing — XS, S, M, L, XL — and it runs small. This is not just an internet rumour. I've ordered from them myself and sized up on more than one occasion. The cut is generally fitted rather than oversized, which is something to factor in if you're a fan of a more relaxed, thrown-on look with your knitwear. For that, you'll want to go a full size up from your usual.

Here's a rough UK size conversion to help you navigate:

XS — UK 6–8 (32–34" bust)
S — UK 8–10 (34–36" bust)
M — UK 12 (36–38" bust)
L — UK 14 (38–40" bust)
XL — UK 16 (40–42" bust)

If you're a UK 10 who usually wears a Small in most European or British brands, Autumn Cashmere's Small may feel snug across the shoulders or chest. I'd treat this as a "when in doubt, size up" label — especially for their more fitted fine-knit styles. Their looser, oversized-cut pieces (they do have some) are easier to size into your usual.

Fit by Garment Type

Not all Autumn Cashmere pieces size the same way — here's what I've found makes a difference:

Fine-gauge turtlenecks and fitted crews: These run the smallest. Size up at least one — potentially two — if you have a fuller bust or broad shoulders.
Cardigans: More forgiving, but still fitted. Stick to your usual size for a neat look, or size up for a relaxed, open layering piece.
Loungewear and wide-leg knit trousers: These tend to run truer to size, as the cut is deliberately generous.
Cropped styles: These are intentionally short — they are not a sizing error. Check the stated length measurements on the product page.

My Honest Take on Buying Autumn Cashmere in the UK

The main challenge when ordering Autumn Cashmere from the UK is that you're typically ordering transatlantic — either directly from their US site or via a stockist — which means returns, if needed, take time and cost money. Getting your size right first time genuinely matters here.

My best advice: measure your bust, your natural waist, and your hip before ordering, then cross-reference with the brand's own size guide on their website. Don't rely on your usual label size alone — every brand is different, and cashmere, particularly at this weight, is unforgiving when it's too tight.

Quick fit tip: If you're right on the border between two sizes in Autumn Cashmere, ask yourself how you wear your knitwear. Tucked into high-waisted trousers? Go true to size. Untucked over wide-leg jeans with a relaxed vibe? Go up.

High Street Alternatives — If You Love the Look but Not the Price

Look, I adore Autumn Cashmere. But at £200+ a jumper, it's not an everyday buy for most of us. The good news is there are some brilliant alternatives on the high street right now that hit a similar aesthetic — fine-gauge, clean lines, and actually quite good cashmere or cashmere-blend quality:

Cos — Probably my first stop for that clean Scandinavian-American knitwear vibe. Their fine-knit merino and cashmere-blend pieces are genuinely excellent for the price, and the sizing is consistent.
Massimo Dutti — Underrated for knitwear. Their pure cashmere pieces are competitive with much pricier brands and the cut is grown-up and wearable.
Me&Em — A brilliant British brand for quality knitwear. Their cashmere sits in the mid-luxury bracket and sizes UK 6–18, with a helpful true-to-size cut.
The White Company — A staple for a reason. Consistent sizing, lovely soft cashmere blends, and the kind of muted palette Autumn Cashmere fans will feel right at home with.
Whistles — Their premium knitwear range has quietly got very good. Classic shapes, fine gauge, and much easier UK sizing.
Jigsaw — Thoughtful, quality-led knitwear that doesn't try too hard. If you love Autumn Cashmere's understated aesthetic, Jigsaw will speak to you.
Reiss — For a sleeker, slightly more fashion-forward take on fine knitwear. Their cashmere-blend turtlenecks are a particular highlight.

Two Independent Brands Worth Knowing

If you want to step off the beaten path a little, these two smaller brands are doing genuinely special things with knitwear:

Baukjen — A sustainable British womenswear brand with a lovely range of fine cashmere and merino knitwear. Thoughtfully made, inclusive sizing, and genuinely investment-worthy pieces.
Madeleine Thompson — A British designer who makes outrageously beautiful cashmere at slightly lower than full-luxury pricing. Her colour work is extraordinary, and sizing is closer to European than US, making it easier for UK buyers to navigate.

Never Get Your Size Wrong Again — Try Tellar

Getting Autumn Cashmere's sizing right is exactly the kind of problem Tellar.co.uk was built to solve. Tellar is the UK's leading free clothing sizing tool — matching your exact measurements to over 1,500 brands instantly, so you never have to squint at a size guide or second-guess yourself again.

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Plus, explore the Tellar Fashion Hub — a library of free, honest, unsponsored style guides from our team of stylists. No ads, no affiliate pressure, just genuinely useful fashion advice.

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