What to Wear to a Work Do: Style Choices That Actually Work

By Ella Blake · Tellar Fashion Hub

Work events are the ultimate style tightrope — too casual and you feel underdressed, too glam and you spend the evening awkwardly overdressed next to your manager in jeans. Here's how to get it right every single time.

Let's be honest: getting dressed for a work event is more stressful than it should be. I once turned up to a company Christmas party in a full sequin midi skirt — fabulous in theory, mortifying in practice when it turned out it was a low-key pub quiz in someone's local. I've also played it too safe in a plain black shift and spent the night wishing I'd made more of an effort. The truth is, dressing for a work do is an art form — and it's one absolutely worth mastering.

Read the Room (Before You Even Open Your Wardrobe)

Before you reach for anything, ask yourself three questions: Where is it being held? What's the dress code (or the implied vibe)? And what's your relationship with the people going? A rooftop cocktail bar calls for something entirely different from a team lunch at a bistro. If there's no official dress code, "smart casual" is the industry standard — and my golden rule is to always dress one notch above what you think is expected. It shows effort without trying too hard.

The Fail-Safe Formula: Elevated Smart Casual

This is your safe harbour. It's polished, it's professional, and it still looks like you've got a life outside the office. Here's what the formula looks like in practice:

Tailored trousers + a silk or satin blouse. A wide-leg trouser in a neutral or muted tone paired with a camisole-style top is endlessly chic. Reiss does brilliant tailored trousers that feel expensive without being ridiculous, and their blouses are consistently elegant. Massimo Dutti is another excellent call — their cuts are clean and the fabrics feel genuinely luxurious for the price point.
A midi dress. This is personally my go-to. A well-chosen midi — wrap style, shirt dress, or a fitted knit — is one of the most versatile pieces in a working woman's wardrobe. Phase Eight and Hobbs are consistently brilliant here; both brands understand that women want to look dressed up without looking like they're heading to a wedding.
A blazer as your anchor piece. If you're unsure about your outfit, a great blazer pulls everything together instantly. Whistles and Me&Em produce some of the best everyday blazers on the high street — structured enough to look intentional, relaxed enough to feel wearable.

The Evening Work Do: When It's Clearly a Party

If the invite says cocktails, dinner, or Christmas party — lean in. This is your moment to wear something that actually excites you, while keeping it broadly appropriate. Here's where I'd go:

A statement dress in a rich colour or print. Deep burgundy, forest green, cobalt blue — these feel celebratory without veering into fancy dress territory. Ted Baker is wonderful for this kind of occasion: their evening pieces have a feminine, polished quality that photographs well and actually fits properly. Coast is also worth a look for their occasionwear range — genuinely good quality and not as safe as it used to be.
Tailored wide-leg trousers with a statement top. If dresses aren't your thing (absolutely valid), a wide-leg trouser in a luxe fabric — satin, crepe, velvet — paired with an interesting top is a brilliant alternative. Mango consistently delivers on this kind of elevated-but-affordable party look. Anthropologie is also excellent if you want something with a bit more personality — their prints and textures tend to be genuinely distinctive.
Jumpsuits. Criminally underrated for work events. AllSaints does some excellent ones — slightly edgy, very wearable, and they require zero outfit-building brain power. Pair with a heel and a simple clutch and you're sorted.

Two Independent Brands Worth Knowing

I always like to bring a couple of less obvious names to the table — the brands that aren't on every high street but absolutely should be on your radar.

Baukjen — a sustainably-focused British brand that does beautifully cut dresses, blouses and trousers perfect for professional settings. The quality is genuinely impressive and the fit tends to be excellent for adult women rather than teenagers.
Kitri — London-based and very much the insider's choice for occasion and smart-casual dressing. Their midi dresses and tailored pieces have a kind of quiet confidence that feels exactly right for a work event where you want to look considered without looking try-hard.

What to Actually Avoid

A few honest notes from the school of hard-won experience:

Anything too short. Minis are lovely — just not when you're also trying to look vaguely professional in front of your line manager.
Extremely sheer fabrics without proper layering underneath. This seems obvious, but under event lighting, things get sheerer than you expect.
Completely new shoes. I have learned this lesson the absolute hardest way possible. Wear something you've walked in before — blisters at a work do are no one's friend.
Anything that requires constant adjustment. If you spent the afternoon tugging at it in your bedroom, you'll spend the evening tugging at it in public.

Getting the Fit Right — The Most Important Thing of All

Here's the thing that nobody talks about enough: the outfit matters far less than the fit. Something perfectly fitted from M&S will look infinitely better than a designer piece that's slightly off. Sizing varies wildly between brands — what's a 12 in Jigsaw might be a 14 in Boden, and a 10 in LK Bennett. It's genuinely maddening, and it's something that catches so many of us out when shopping online or between brands.

That's exactly why I always recommend checking your size properly before you buy — especially for an important occasion where you need things to actually fit the way they look on the hanger.

Never Guess Your Size Again — Use Tellar

Tellar.co.uk is the UK's leading free sizing tool — and honestly, if you shop across multiple brands (and who doesn't?), it's the most useful thing you can bookmark right now. It matches your measurements to 1,500+ brands instantly, so you know your actual size in every brand before you order. No more size guide rabbit holes, no more returns.

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And while you're there, don't miss the Tellar Fashion Hub — a library packed with free, honest, unsponsored style posts from our team of stylists. No ads, no affiliate bias, no fluff. Just genuinely useful fashion advice on everything from the ultimate clothing sizing guide to the best jeans trends for 2026, the ultimate guide to dresses, and the ultimate guide to jackets. All free, always independent.

The bottom line? A work do is an opportunity, not a minefield. Wear something that makes you feel genuinely confident — not just "fine" — and you'll walk in with the kind of easy energy that no sequin skirt (or lack thereof) can manufacture on its own. Dress for yourself first, the occasion second, and let the outfit do its job quietly in the background while you actually enjoy the evening.