What Is Sizing Like at Ro&Zo?

Ro&Zo broadly comes up true to size, but with a tendency to run slightly generous and slightly long – so if you’re between sizes, or you’re petite, sizing down is usually the smarter move. That’s the short answer. The longer answer, which I’ll give you below, is that this is a brand where the fit genuinely shifts from dress to dress, and knowing where it stretches and where it pinches will save you a frustrating returns parcel. I’ve dressed enough clients in Ro&Zo occasion pieces to know exactly where the traps are.

The honest fit picture

Ro&Zo is a female-founded British brand built around occasion dressing – the wedding-guest dress, the works-do jumpsuit, the “I need to look pulled together by 9am” tailored piece. It’s pitched somewhere between high street and premium, and the cut reflects that: more considered than fast fashion, but not couture-precise. Here’s what I’ve found consistently, both on myself and on clients:

Dresses run a touch long and roomy. Especially through the bust and the hem. If you’re 5’4” or under, go straight for their petite length – it’s one of the best things they’ve introduced and it saves a tailor’s bill.
The bust can be generous. Several of their wrap and draped styles are cut with room up top, which is brilliant if you’re fuller-busted and a faff if you’re not. Size down before you size up here.
Trousers and tailoring run narrower. The waist on their wide-leg and tailored trousers can pinch even when the leg is roomy – measure your waist, don’t guess.
Knit tops are true to size but relax with wear. Buy snug; they give.

My own Ro&Zo fail: I ordered a midi in my “safe” size for a summer wedding, didn’t check the length, and spent the whole day holding the hem out of my heels. My win: I went down a size in their belted shirt dress on a hunch, and it’s now the most-complimented thing I own. The lesson – with Ro&Zo, trust the measurements over the label every single time.

How to actually find your size

Because the silhouettes vary so much – sleek column dresses one minute, draped jumpsuits the next – the size label tells you very little on its own. Do this instead:

Take your bust, waist and hip measurements properly, with a soft tape, against skin or a thin layer.
Check the specific garment’s measurements rather than relying on the brand’s general chart.
For anything tailored, prioritise your waist measurement. For anything draped, prioritise bust and hip.
If you’re short-waisted or petite, default to the petite length – you can always have a tiny take-up done, but you can’t add length back.

Where else to shop for this look

If you love the Ro&Zo aesthetic – polished, feminine, occasion-ready – here’s where I’d send clients depending on budget. I’ve picked these specifically for their dress and occasion-wear credentials, not just because they’re familiar names.

High street

Coast – the high street’s occasion-wear specialist; structured event dresses that photograph beautifully.
Phase Eight – reliably flattering cuts for weddings and races, with a fit that tends to be true to size.
Monsoon – strong on embellishment and print if you want something with a bit of romance.
Oasis – pretty, on-trend dresses at a gentler price point; great for younger occasion looks.
Warehouse – sharp, modern tailoring and slip dresses with a fashion-forward edge.
Boden – the print queen, and excellent if you want a dress that works as hard on a weekday as it does at a christening.
Mint Velvet – relaxed-luxe separates and dresses with a softer, more effortless feel than Ro&Zo.

Premium

Whistles – minimalist, beautifully cut occasion pieces; my first stop for a modern wedding guest who hates fuss.
Hobbs – grown-up, ladylike tailoring and dresses; brilliant for mother-of-the-bride without being matronly.
Reiss – sleek and a touch sexier; their column dresses and jumpsuits are a direct Ro&Zo rival.
LK Bennett – classic, polished and royal-approved; the go-to for a foolproof event dress with matching heels.

Luxury & designer

Self-Portrait – for lace and statement occasion dresses that do the talking for you.
Needle & Thread – floaty, embellished, fairytale dresses for the big-moment events.
Max Mara – if you want investment tailoring and an immaculate column dress that will last a decade.

Two off-radar independents worth knowing

Kitri – a London independent doing limited-run, print-led occasion pieces; you’ll never turn up in the same dress as someone else.
Albaray – a quietly brilliant British independent with elevated, easy-to-wear dresses and a strong sustainability streak. Massively underrated.

Stop guessing your size – let Tellar do it

Here’s the thing: with a brand as fit-variable as Ro&Zo, you shouldn’t be playing roulette with the returns process. That’s exactly why I built Tellar – the UK’s leading sizing tool. You measure once, using your bust, waist, hip or even an existing brand size you trust, and Tellar matches your body to 1,500-plus brands instantly. No more squinting at a size guide, no more second-guessing.

Use the Store Size Lookup tool to get your precise size in any brand – COS, Reiss, Everlane, Arket and far more.
It’s always free, with no downloads – it works straight in your browser.
Measure once and it works everywhere, every time you shop.

And beyond the sizing tool, there’s 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 for every occasion.

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Buy the measurements, not the label – and Ro&Zo will reward you with some genuinely beautiful pieces.