What Is Sizing Like at Alie Street?

Alie Street runs true to size, so for the vast majority of women your usual UK dress size is exactly the one to order. This is a British occasionwear label that fit-tests every single style on real women rather than a hanger, and it builds its dresses from fabrics chosen for a clever blend of structure and gentle stretch. The result is a dress that holds its shape, skims rather than clings, and very rarely needs sizing up or down. If you only take one thing from this post, take that — but stay with me, because the in-between sizing is where Alie Street genuinely earns its reputation.

So, does it come up big or small?

Neither, really — and that's the point. Across reviews and my own time with the brand, Alie Street is one of the most consistent occasion labels for sticking to its own size chart. The cut is forgiving through the waist and generous enough through the bust that you don't get that dreaded gaping at the back zip. If anything, I'd say it's marginally on the roomier side of true-to-size for evening styles, which is no bad thing when you've got a long wedding day and a sit-down lunch ahead of you.

The clever bit: combination sizing

Here's where Alie Street pulls ahead of most of the high street. Alongside single sizes, it offers combination sizes — think 6–8, 8–10, 10–12, 12–14 and upwards — so if you're one of the many women who are a different size on top to bottom, you don't have to compromise. I cannot tell you how many fittings I've done where a client is technically "between sizes" and ends up swimming in one or straining in the other. This solves it neatly. A few things worth knowing:

The full range spans roughly UK 6 to UK 24, so it's far more inclusive than a lot of designer occasionwear.
If you're genuinely on the cusp, size into the combination option rather than rounding up a full single size — the stretch does the rest.
There's a dedicated petite line, which is a gift if you're under 5ft 4in and tired of hemming everything.

Fabric, fit and where it flatters

The fabrics are the unsung hero. Because they pair a bit of body with a bit of give, an Alie Street dress sits where it's meant to and doesn't crease into oblivion the second you sit in a taxi. For pear shapes, the A-line and fit-and-flare styles are your friends — they nip the waist and float over the hip. If you carry weight on the tummy, look to the wrap and ruched-waist styles, which drape rather than press. Busty? Go by your bust measurement and have the waist taken in if needed; it's far easier than letting a too-small bodice out.

A quick confession of my own: years ago I ordered an occasion gown a full size down for a friend's wedding, convinced I'd "be that size by then." Reader, I was not. I spent the speeches unable to fully exhale. The Alie Street lesson is the opposite — order your real size, lean on the combination options, and let a £15 trip to the tailor do any fine-tuning. A dress that fits the version of you turning up on the day always wins.

Mother of the bride & wedding guests, take note

This is squarely Alie Street's sweet spot. The sleeve options, midi lengths and matching cover-ups make it a brilliant shout for mother-of-the-bride and milestone-event dressing where you want elegance without a coat over the top. My styling tip: build the outfit around the dress's neckline. A boat or cowl neck wants understated drop earrings and a sleek up-do; a deeper V can take a statement necklace. Keep the shoe block-heeled if there's grass involved — sinking into a lawn mid-receiving-line is its own kind of fashion fail.

Where else to shop occasion dresses

If Alie Street isn't quite landing on colour or budget, here's where I'd send a client for the same true-to-size, event-ready energy.

High street

Coast — the high street's occasionwear specialist; reliable for embellished midis and structured bardot styles that fit true.
Phase Eight — superb for mother-of-the-bride; tailored bodices and generous, forgiving cuts.
Hobbs — polished, slightly classic occasion dressing with a flattering, true-to-size fit.
Monsoon — go here for embellishment and floaty, romantic event dresses.
Whistles — modern, pared-back occasion pieces for the woman who hates fuss.
Ted Baker — bold prints and nipped-in waists; sizing skews neat, so check the cut.
Oasis — great-value satin slips and printed midis for less formal dos.

Premium

Reiss — clean, contemporary tailoring and column dresses; sleek and consistently sized.
LK Bennett — grown-up, ladylike occasionwear with beautiful finishing.
Me&Em — clever, body-considered design with built-in shaping and proper sleeve options.

Luxury / designer

Max Mara — investment-level elegance; faultless fabric and a clean, true cut.
Self-Portrait — the modern wedding-guest go-to for sculpted lace and structured midis.
Needle & Thread — dreamy, embellished tulle for when you want to feel properly dressed up.

Two to discover (independent picks)

Beulah London — an ethical British label with quietly gorgeous, ethically made occasion dresses worn by women who like a story behind their clothes.
Kitri — an independent London brand doing distinctive, limited-run prints and silhouettes you genuinely won't see on everyone else at the party.

How Tellar takes the guesswork out of it

Knowing a brand runs true to size is half the battle — the other half is knowing your size in that brand. That's exactly why I built Tellar, the UK's leading sizing tool: measure once and your body is matched instantly to 1,500-plus brands, so you never squint at a size guide again.

Measure once using your bust, waist and hip — or simply your existing size in a brand you already own.
Use the Store Size Lookup to get your precise size in any brand — COS, Reiss, Everlane, Arket and more.
Always free, no downloads — it works straight in your browser.

There's also 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 best brands, all in one place.

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