What is My Size at Flounce London?

By Ella Blake — Fashion Stylist | Tellar Fashion Hub — Always honest, unbiased, & unsponsored post

Flounce London runs true to standard UK sizing across most of its range, so in the vast majority of cases you can simply order your usual size with confidence. That said — as with any occasion and partywear brand — there are a few nuances worth knowing before you buy, particularly when it comes to bodycon cuts, wrap styles, and their plus-size range.

I'll be honest: I only discovered Flounce London properly a couple of years ago, after spotting one of their sequin mini dresses all over Instagram on a Friday night out I wasn't invited to (the indignity). I ordered a size 12 — my usual — and it fit perfectly. No drama, no size-up panic, no standing in the kitchen eating cereal because you can't get out of a dress. From that one purchase I became a bit of a fan.

Who Is Flounce London?

Flounce London is a London-based brand built around bold, glamorous occasionwear. Think sequins, satin, wrap dresses, cut-out minis, and co-ords with serious going-out energy. What I love about them is that they genuinely cater to a wide range of sizes — from a UK 6 right up to a UK 26 — so it's one of those rare party brands that doesn't leave you feeling like an afterthought if you're anything above a size 14.

They're available directly via their own website at flouncelondon.com and also through ASOS, which is useful because it means you can often find their pieces alongside customer reviews and fit feedback before committing.

Does Flounce London Run True to Size?

Yes — for the most part, Flounce London is true to standard UK sizing. Here's what I've found and what customer feedback consistently backs up:

Dresses (standard fit): Order your usual size. Their wrap and midi dresses are particularly well cut and forgiving around the waist, so if you're between sizes these styles tend to be the most accommodating.
Bodycon and mini dresses: If you're fuller in the hips or chest, consider sizing up one. Bodycon by nature is designed to be fitted, so a little extra room goes a long way here.
Co-ords (tops and trousers): Buy separates according to your individual measurements. Many customers mix sizes — a 12 top with a 14 trouser, for example — and that's absolutely fine.
Plus-size range (up to UK 26): Reviews are very positive. Flounce London clearly designs their plus range properly rather than just scaling up a straight-size pattern, which is rarer than it should be.
Petite customers: Their standard lengths work for many petite frames, but do check the product descriptions — some midi lengths can run quite long on shorter figures.

Fit Tips Before You Buy

A few things I always do before ordering from Flounce London — and from any occasionwear brand, really:

Check whether the fabric has stretch. Satin and crepe pieces have little give; ruched and jersey styles are much more forgiving.
Read the ASOS customer reviews if buying via that platform — shoppers often leave brilliant fit notes like "I'm a 32G bust and sized up to a 16" which is worth its weight in gold.
If you're buying for an event, order two sizes and return the one that doesn't fit. I've done this more times than I care to admit — it's not faff, it's just sense.
Their wrap styles are genuinely adjustable, so they tend to be the safest option if you're unsure.

Styling Flounce London: What to Wear It With

Flounce London is built for nights out, birthday dinners, weddings (as a guest, obviously), and any occasion where you want to look properly done up without spending designer money. Here's how I'd style their key pieces:

Sequin minis: Keep everything else understated. A strappy heel, minimal jewellery, a sleek updo. The dress is doing the work — let it.
Satin midi dresses: These look brilliant dressed down with trainers and a blazer for a smart-casual vibe, or elevated with kitten heels for a dinner-date look.
Co-ords: Wear them together as intended, or split them up. Their satin wide-leg trousers paired with a simple white shirt is genuinely chic.
Wrap dresses: Add a longline cardigan or tailored jacket if you're heading somewhere where a little coverage is needed. The wrap style flatters almost every body shape.

Similar Brands by Budget — My Honest Picks

If you love the Flounce London aesthetic but want to explore your options, here's where I'd also shop by budget tier:

🛍️ High Street

River Island — One of my go-tos for affordable occasionwear. Their bodycon dresses and sequin pieces are consistently good value and the sizing is very reliable.
Coast — Brilliant for more elevated going-out and occasion dresses. Their midi and maxi length work particularly well for weddings and formal dinners.
Phase Eight — If you want polish over party, Phase Eight does occasion dresses with real elegance. Sizing is consistent and their fabrics are a step above most high street.
Monsoon — Excellent for print-led occasionwear and anything with a bohemian or festive edge. They've really elevated their range in recent years.
Ted Baker — A little pricier for high street but the quality is there. Their occasion dresses are beautifully constructed and the sizing is consistently true to size.
Hobbs — Sophisticated and beautifully made. If Flounce London is for Friday nights out, Hobbs is for the wedding you're actually in. Their wrap dresses are a particular highlight.
Reiss — Worth every penny for a going-out or occasion piece you'll wear more than once. Impeccable cut and fabric quality, and the sizing tends to be very true.

✨ Premium (Independent Picks)

Rixo — A London-based independent brand that has become something of a cult name in UK occasionwear. Their vintage-inspired silk and cotton dresses are genuinely stunning and worth the investment. Sizing is UK standard — generally true to size.
Ghost — Another British independent with a decades-long reputation for beautifully fluid, feminine occasionwear. Their satin-style jersey is incredibly flattering and tends to work across a range of body shapes. True to size.

💎 Luxury / Designer

Self-Portrait — The go-to for elevated partywear and occasions. Their lace and embroidered midi dresses are everywhere at smart events and for good reason. Runs slightly small — I'd recommend sizing up if you're between sizes.
Needle & Thread — If you want something truly special, Needle & Thread's embellished and embroidered gowns are the closest thing to couture at a reachable price point. Sizing tends to run true to UK standard.

The Bottom Line on Flounce London Sizing

Stick with your usual UK size and you'll almost certainly be right. The brand designs with real women in mind — I genuinely appreciate that they offer up to a UK 26 without compromising on the fashion-forward aesthetic — and the fit is generally reliable across their range. If you're buying a bodycon style or something in a non-stretch fabric, consider sizing up one. But for the most part? Trust your instincts, grab your size, and enjoy the sequins.

And if you're ever unsure before buying, use Tellar's Store Size Lookup — it takes the guesswork out completely.

Never Guess Your Size Again — Use Tellar

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