What Is Sizing Like at Rebecca Vallance clothing?

Rebecca Vallance runs small — especially through the bust, waist and shoulders — so for fitted dresses, suiting and jumpsuits I'd almost always nudge a client to size up from her usual UK number. The label uses Australian sizing, which lines up numerically with UK sizes (an AU 10 is a UK 10 on paper), but the cut is far closer to the body than most British high-street shoppers expect. If you usually breeze into a UK 12, don't be alarmed when the Vallance 12 feels like a firm handshake rather than a hug.

The short answer on fit

Overall: True to the AU number, but slim — it wears a size smaller than the average UK brand.
Bust & ribcage: The tightest point. Fitted bodices, boning and square necklines leave little give.
Waist: Sharply nipped. Lovely on the hanger, unforgiving after a big lunch.
Hips: Often the most generous measurement, so a one-size-up choice can gape at the bust if you size purely for the hip.
Sleeves & shoulders: Narrow. Anyone with athletic or broader shoulders should factor this in for blazers and long-sleeve gowns.

Why it fits the way it does

This isn't sloppy sizing — it's deliberate. Rebecca Vallance built her reputation on red-carpet precision, race-day glamour and modern bridal, and that look only works with structure. Nearly every piece is fully lined and cut in a dense crepe or woven fabric with minimal stretch. You're paying for sharp seams, inner boning and a waist that holds its shape all evening. The trade-off is honesty: there's almost no fabric forgiveness, so the measurements have to be right rather than roughly right.

Category by category

Occasion & midi dresses: Run small in the bust and ribs. Size up if your bust-to-waist difference is on the fuller side.
Mini dresses: Slim and short. Worth sizing up for chest comfort and a touch more length.
Suiting & blazers: True to size at the waist, but snug across the bust and shoulder — go up one if you plan to layer.
Jumpsuits: Beautiful, but cut short in the rise and torso. Long-bodied women should tread carefully here.
Statement-sleeve tops: Tailored through the body with narrow arms — check your upper-arm room.

A quick word from experience

I learned the Vallance lesson the hard way before a friend's vineyard wedding. I ordered a structured midi in my usual size, fully expecting to swan about in it, and the zip stopped dead two inches short across the bust — gorgeous from the front, completely undone at the back. My win came the second time round: I sized up one, had the waist taken in by a tailor for a tenner, and it became the dress I've been asked to lend out three times since. That's the move with this label — buy for the broadest part of you, then tailor the rest. Structured fabric tailors beautifully precisely because it doesn't stretch.

Where to shop for the Rebecca Vallance look

If you love the sharp, occasion-ready silhouette but want options at different price points, these are the brands I steer clients towards.

High street

Coast — the obvious starting point for structured occasion dresses and wedding-guest tailoring at a friendly price.
Phase Eight — brilliant for fitted occasion and mother-of-the-bride pieces with a similar cinched waist.
Hobbs — polished tailoring and races-ready dresses with a classic British finish.
Reiss — the closest high-street match for clean, body-skimming tailoring and sharp blazers.
Whistles — modern, minimal occasionwear with that contemporary edge Vallance fans tend to like.
Ted Baker — for statement sleeves and bolder occasion dresses with structure built in.
LK Bennett — refined, grown-up event dressing, strong on shoes to match.
Monsoon — embellished and feminine occasionwear when you want a bit more drama for less.

Premium

Maje — French contemporary label with the same fitted, lined construction and statement detailing.
Sandro — sharp tailoring and elegant occasion pieces that wear with a similarly slim cut.
Cefinn — British, beautifully tailored occasion and workwear for the polished Vallance customer.
Me&Em — clever cuts and structured dresses that flatter without the squeeze.

Luxury & designer

Max Mara — the gold standard for structured tailoring and investment occasion coats.
Totême — pared-back Scandinavian luxury for those who want the precision minus the embellishment.

Two independents worth knowing

Acler — another Australian label with the same architectural shoulders and structured occasion edge; a near-perfect parallel if you adore the Vallance silhouette.
Galvan London — an independent London eveningwear house doing column gowns and slip dressing with serious red-carpet polish.

How to get your Rebecca Vallance size right, first time

Because the cut is so unforgiving, this is exactly the brand where guessing costs you a return — and on investment occasionwear, that's a faff you don't want before an event. That's where Tellar earns its keep.

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The Tellar Fashion Hub

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A few of my favourites to read next:

Buy Rebecca Vallance for the part of you that's broadest, tailor the rest, and you'll have a piece that looks like it was made for you — because, near enough, it now is.