Top 10 Clothing Brands That Run True to Size

The short answer: Uniqlo, Arket, Jigsaw, Mint Velvet, Massimo Dutti, Whistles, Hobbs, Joseph, Kitri and Aligne are the ten labels I trust most to arrive in the size you actually ordered. Not the size you hoped for. Not the size that flatters the brand's ego. The size on the label.

I want to be honest about something before we go any further, because it changes how you read the rest of this list. There is no legal standard for a UK size 12. None. Every brand cuts to its own block, and "true to size" is really shorthand for consistent and honest — the garment matches its own published size chart, and it does so this season, next season, and across the whole range.

That's a much rarer quality than it sounds.

My most expensive lesson in sizing

Years ago I bought a wedding-guest dress online in my usual size from a brand I'd never shopped before. It arrived four days before the wedding, and I could not do the zip past my ribs. I ended up in a black dress I'd worn twice already, feeling deeply sorry for myself in the photographs.

The win came later, and it's why I'm sentimental about this list. I ordered five things from Hobbs for a client's capsule wardrobe — a blazer, two dresses, trousers, a knit — all in the same size, all sight unseen. Every single piece fitted. Not one return. My client thought I was some kind of wizard. I was just shopping a brand that keeps its promises.

What I actually mean by "true to size"

It matches its own chart. Measure yourself, read the chart, get that fit. Sounds basic. Is astonishingly rare.
It's consistent across categories. A brand where you're a 12 in dresses and a 16 in trousers isn't true to size, it's a lottery.
It's consistent across seasons. Some brands quietly redraft their block every couple of years and never mention it.
Intentional oversizing still counts, as long as it's labelled. A jumper described as relaxed that arrives relaxed is doing its job.

HIGH STREET & ACCESSIBLE

1. Uniqlo

The most reliable mass-market sizing in Britain, and it isn't close. Japanese pattern-cutting is precise and the size charts are detailed to the centimetre. My caveat: the slim-cut trousers and rigid denim run leaner than the rest of the range, so if you're between sizes or fuller through the hip, take the larger.

2. Arket

Scandinavian, minimal, and quietly excellent at consistency. What I like is that Arket tells you the intended fit in the product description — relaxed, regular, fitted — and then delivers exactly that. Take it at its word and you'll rarely need the returns label.

3. Jigsaw

An old-guard British name that has never gone in for vanity sizing. Tailoring, knitwear and dresses all sit on the same believable block. It's one of the few places I'll order for a client without a fitting first.

4. Mint Velvet

Sits in that useful space between high street and premium, and it's genuinely dependable. Slightly relaxed through the body by design, but consistently so — which is the whole point. Good for anyone who wants ease without the guesswork.

PREMIUM

5. Massimo Dutti

The Inditex sibling that behaves itself. Where Zara can leave you two sizes adrift, Massimo Dutti runs true and holds its shape after washing. My tip: it's cut for a longer torso than most UK brands, so petite frames should size down in dresses rather than up.

6. Whistles

Reliably consistent across the range, and one I recommend constantly for the woman who wants one blazer that works for eight years. The tailoring is trim but honest — it never pretends to be roomier than it is.

7. Hobbs

Formalwear and everyday, both dependable. Hobbs is a brand I trust for occasionwear specifically, which is where sizing anxiety runs highest — nobody wants to discover a fit problem at 9am on the day of a wedding.

LUXURY

8. Joseph

British luxury with a clean, disciplined block and none of the sample-size arrogance you get elsewhere at this price. Trousers and knitwear are the standouts. When you're spending properly, sizing consistency stops being a convenience and starts being the whole value proposition.

INDEPENDENT LABELS WORTH KNOWING

9. Kitri

A London independent with a small, tightly edited range — and that's precisely why the fit is so consistent. Fewer styles means better-controlled patterns. Their dresses in particular do what the chart says they'll do.

10. Aligne

Another London label, sustainability-minded, cut with real attention to proportion. The tailoring runs relaxed but it's declared relaxed, which is exactly the honesty I'm asking for. A brilliant left-field alternative to the obvious premium names.

Two I nearly included — and why I didn't

Sézane: beautiful, and consistent within itself, but it's cut to a French block that assumes a leaner frame. Lovely brand, but it needs a size-up more often than a true-to-size list allows.
Cos: consistent, yes, but the house language is deliberately oversized. That's a design choice, not a sizing standard, and it confuses people who order their usual size expecting a usual fit.

How to make any brand behave

Know your three numbers. Bust, waist, hip, measured over underwear, tape snug but not pulling. Re-measure twice a year.
Read the fabric, not just the size. A rigid cotton twill in a 12 and a jersey in a 12 will feel like different sizes on your body.
Size to your largest measurement and let a tailor take in the rest. Ten pounds at an alterations shop beats a garment you never wear.
Filter reviews for your build. "Runs small" from someone with a different frame is noise. "Runs small in the bust, I'm a 34D" is data.

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