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best suits for party season for women© Supplied

Trouser suits are huge for party season - these are the 18 suits to wear for any occasion

A guide to the best suits for women for the new season... 

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Leanne Bayley
Director of Lifestyle & Commerce
Updated: November 14, 2024
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Excuse me everyone, party season is calling for you and it's time to wow in a cool winter suit. I'm hoping this edit will get you excited for a brand new season! 

If you're not a dress girly or find jumpsuits a little restrictive, a trouser suit is your new BFF. Trust me, I'm obsessed with them and they're honestly the best outfit to wear, whatever the invite says. I've been loving trouser suits for years and know a thing or two about what makes a good one, and I've searched the web for the best trouser suits for women. Think impeccable tailoring, minimalist neutral suits and even some with waistcoats.

Trouser suits are my fallback outfit for any occasion, from hen party weekends to the office to posh meals out with my family. It's a one and done type outfit in my opinion, guaranteed to make you feel polished yet comfortable and suitably dressed, whatever the dress code.

I'm going to confess something - I'm addicted to two-piece trouser suits. Honestly, it's bordering on ridiculous. I've loved trouser suits for years, and wear one for nearly every important social occasion in my calendar. I'm even wearing one in my HELLO! profile picture. I don't know what it is, but when I wear a suit I just feel like I have my life together. I feel like a confident girl boss. I feel like I can do anything. I also love that I don't have to think too much about an outfit as a whole, and you can mix and match the separates.

Party season is coming up, so now's the time to start thinking about the special events you have in your diary. Trust me - a suit will work for everything. Whether you're after a black suit, a white suit or a timeless tuxedo suit, check out the list below. And we're loving all the three-piece suits that are everywhere right now, so we've included links to the matching waistcoats as well, just in case you want to go full on with the look.

How I chose the best trouser suits 

  • Popular brands: I shop at all of the brands within this list, if I'm choosing my favourite suits it's best that I pick brands I shop and love.
  • Inclusive sizing: Where possible, the suits in this list are for all shapes and sizes.
  • Versatility: The best thing about a suit? The way you can wear the jacket and trousers separately and you've got more looks for the price of one.

It's not just me who loves a power suit. Celebrities and influencers, and royals love to dress in a two-piece. Whether it's Joey King wearing a green Bella Freud suit, or supermodel Naomi Campbell in fuchsia pink, Katie Holmes in white with a colour pop shoe, or the Princess of Wales in purple - a smart trouser suit makes for a great outfit choice.  

Kate Middleton wearing trouser suits
Princess Kate is fond of a trouser suit

How to style a trouser suit

You have three ways you can wear a suit. Casual for daytime (see Hailey Bieber for inspiration - or look to Trinny Woodall on Instagram), smart and elegant like Victoria Beckham, or as evening formalwear à la Margot Robbie. As a side note: My obsession with suits wouldn't be a thing if I had to wear them for work - I can totally understand if you want to opt out of this trend because you feel like it's 'boring workwear'. However, you could try a more relaxed approach to a trouser suit, or choose a colour you wouldn't dare wear in the boardroom. 

I personally think trouser suits look great with T-shirts and white fashion trainers, I also love them glammed up with sexy stilettos and a chic clutch bag. I would steer clear of cross-body bags, as the chain or strap across the body might ruin the shape of the jacket. Jewellery-wise, it's totally up to you. I love a pair of statement earrings with mine if I'm wearing for an evening, but if it's daytime, I usually stick to gold chunky hoop earrings.  

My suit muses from left to right: Victoria Beckham, Margot Robbie, Jessica Chastain, Hailey Bieber© Getty Images
My suit muses from left to right: Victoria Beckham, Margot Robbie, Jessica Chastain, Hailey Bieber

Can you wear a trouser suit to a wedding?

Definitely. If you're wearing a trouser suit to a wedding, obviously don't opt for white (unless you're the bride!) and go for bright or jewel-toned colours instead. Or even a printed suit for extra impact.

Olivia Palermo in a colourful suit and corsage choker© Getty Images
Olivia Palermo in a colourful suit and corsage choker

How to dress down a trouser suit for daytime

If you want to dress down a trouser suit, it's easy! Team with a a pair of white fashion trainers or a pair of strappy sandals for a formal event. Trinny Woodall is the queen of power dressing in sneaks. 

Celebrities wearing white suits - and not to a wedding! From left to right: Cindy Crawford, Trinny Woodall, Sydney Sweeney, Meghan Markle© Getty Images
Celebrities wearing white suits - and not to a wedding! From left to right: Cindy Crawford, Trinny Woodall, Sydney Sweeney, Meghan Markle

What shoes to wear with a trouser suit? 

For a special occasion, I like teaming a trouser suit with a sexy stiletto or a strappy sandal or a mid-heel sandal (comfort is key!). A seamstress once told me that if you're wearing wide-leg trousers, the hem should fall halfway down the heel. Also, don't underestimate the fashion trainer - I love wearing my suits in the day or out to dinner with a pair of Veja trainers and a simple white tee. Flat shoes can be tricky, but ideally you would see some skin - you don't want to look like the trousers are wearing you.

Scroll down for the best favourite affordable trouser suits you can buy right now... 

Best trouser suits for women

1/17

M&S Relaxed Fit Tailored Blazer & Trousers

M&S Relaxed Fit Tailored Blazer & Trousers

Sizing Details:

The trousers come in sizes 6-24 and you've got the option of short/petite, regular, and tall. The jacket goes up to a size 24. 

Colours available: Black

Shipping: £3.99 Standard Delivery or free for orders over £60

Returns: Free within 35 days

The new season M&S suit is new in for winter and I predict this will be a huge sell-out. Guaranteed, this won't stick around for long.

2/17

Nadine Merabi Charlotte Suit In Red

Nadine Merabi red suit© Nadine Merabi

Sizing Details

The items are available in sizes XS (6) up to an XXL (18). The trousers come in just one leg length. If they are too long, you'll need to visit a tailor. 

Colours available: Red

Shipping: £3.95 Standard Delivery or free for orders over £350

Returns: Free within 14 days

This suit is perfect for anyone who wants to look festive over the holiday season. Or, if you have a special occasion in your diary, this could be the one.

3/17

LK Bennett 'Bella' Black & Gold Suit

LK Bennett party suit© LK Bennett

Sizing Details

LK Bennett has jumped on the party wear trend with this three-piece suit. The trousers are available in regular length. The trousers come in sizes 6-20. 

Colours available: Black and gold

Shipping: £3.99 Standard Delivery or free for orders over £300

Returns: Free within 28 days

LK Bennett has launched its new party wear collection and this suit is absolutely sensational. The Bella suit features bold black and gold metallic stripes, crafted from a luxurious blend and finished with faux horn buttons. Add gold metallic accessories.

4/17

River Island Red Velvet Suit

River Island red velvet suit© River Island

Sizing Details

Sizing Details

The jacket is available 6 - 18. The trousers are wide-leg and according to other shoppers, they fit true to size. 

Colours available: Red

Shipping: £4 Standard Delivery or free for orders over £50

Returns: Free within 28 days

This suit is absolutely stunning. I don't think it'll stay around for long - it's just gorgeous. Team buttoned up a la the model and rock with stilettos or trainers.

5/17

New Look 'Finding Friday' Black Metallic Tweed Suit

New Look 'Finding Friday' Black Metallic Tweed Suit© New Look

Sizing Details

New Look has a helpful size guide on every page that's very useful. The blazer goes up to a size 16 and the trousers go up to a size 16 as well.  

Colours available: White

Shipping: Free over £50

Returns: Free within 30 days at New Look stores

This black tweed suit is from Finding Friday, which is stocked on the New Look website. I love how it's been styled with simple black shoes. Tres chic!

6/17

& Other Stories Red Suit

& Other Stories red suit© & Other Stories

Sizing Details

& Other Stories has EU sizes on site but there is a size guide on every page that's very helpful. The blazer go up to a size 44 which equates to a size 16 in the UK. 

Colours available: Red

Shipping: £4 Standard Delivery or free for orders over £80

Returns: Free within 30 days

I love how chic this light bright red suit looks and it would be fabulous teamed with sparkly accessories.

7/17

H&M Black Patterned Suit

H&M suit for winter © H&M

Sizing Details

H&M doesn't do different leg lengths so be prepared to visit a tailer if you're on the petite side. The trousers go up to a size 22, and the jacket goes up to a size XXL.

Colours available: Black

Shipping: £3.99 Standard Delivery or free for orders over £30

Returns: Free within 28 days

This loose-fit patterned cotton twill suit is guaranteed to fly off the virtual rails. As you can see on the model, this suit is supposed to look a bit edgy and I love how it has been styled with pointy flats.

8/17

ME+EM Sharp Shoulder Tux Suit

ME+EM Sharp Shoulder Tux Suit© ME+EM

Sizing Details

The blazer is available in sizes 4 - 18 and the website recommends taking your usual size as it's a slim fit design. The trousers also come in sizes 4 -18. 

Colours available: Black

Shipping: £4.95 Standard Delivery

Returns: Free within 28 days

I'm calling it - this is a 'forever suit' and for very good reason. This Tux suit adds a touch of glam to a formal suit. A winner for the festive period.

9/17

Phase Eight 'Adalynn' Fitted Jacquard Suit

Phase Eight Adalynn Fitted Jacquard Suit© Phase Eight

Sizing Details

Both the blazer and the trousers are available in sizes 6 - 18. 

Colours available: Black

Shipping: £2.95 Standard Delivery or free for orders over £150

Returns: Free within 28 days

If you're looking to go for an elegant look during party season, this gorgeous jacquard suit will be a real statement look. Add silver accessories to really make it pop.

10/17

Karen Millen Black Sequin Suit

Karen Millen sequin suit© Karen Millen

Sizing Details

The trousers are available in sizes 6 - 16, and have only one option when it comes to leg length. The shirt is available XS - L. 

Colours available: Black

Shipping: £4.99

Returns: £2 and you have 28 days. Returns are FREE for Karen Millen PREMIER customers

Perfect for anyone looking for a seriously sparkly suit this winter. The suit consists of a smart trouser and sophisticated shirt and both would be an elegant staple in any wardrobe.

11/17

Mango Diamante Suit

Mango diamante suit© Mango

Sizing Details

Choose between sizes XS - XL in the jacket, and 8 - 18 in the trousers. The pants are one length and Mango tend to be on the longer side, so bear this in mind when ordering. 

Colours available: Black

Shipping: £3.95 Standard Delivery or free for orders over £30

Returns: Free within 30 days

Ok, we're loving this super sparkly diamante  outfit from Mango. It looks like it's twice the price if you ask me. 

12/17

White Stuff 'Evelyn' Suit In Plum

The White Stuff burgundy suit© The White Stuff

Sizing Details

The trousers are cropped and are sizes 6-24 and shoppers say they're true to size.  The jacket goes up to a size 24. 

Colours available: Plum

Shipping: £3.99 Standard Delivery or free for orders over £70

Returns: Free within 35 days

This suit from White Stuff is going to fly off the virtual rails - it's the colour of the season after all. I love how this has been styled with pumps and a striped Breton long-sleeved top, proving suits can be casual-cool, too! 

13/17

Warehouse Premium Asymmetric Pinstripe Suit

Warehouse suit© Warehouse

Sizing Details

Both the blazer and the trousers are available in sizes 6 - 16. You only have the one option when it comes to the leg length of the trousers. You want an intentional oversized fit with this one. 

Colours available: Burgundy

Shipping: Free with Warehouse Unlimited

Returns: Free within 30 days

If you're looking to make a bold statement, this Warehouse asymmetric pinstripe suit might do the trick. The perfect blend of classic tailoring and contemporary design. it will work perfectly for more casual events over the Christmas period. 

14/17

Tu At Sainsburys Sequin Suit

Tu at Sainsburys sequin suit© Tu

Sizing Details

Both the blazer and the shorts are available in sizes up to a 24.

Colours available: Black, Navy, Red

Shipping:  Free to click and collect

Returns: Free to return to store

The Tu party wear collection has dropped and the black blazer has been designed with sequin embellished details for a statement look. In a relaxed fit, this suit can be dressed up or down - depending on the occasion.

15/17

All Saints 'Sae' Suit

All Saints black satin suit© All Saints

Sizing Details

Choose between a 6 and 16 for the Sae suit. The advice is to size down if you're not into the oversized look. 

Colours available: Black

Shipping: £3.99 Standard Delivery

Returns: 28 days 

The All Saints 'Sae' suit is made from an expertly woven double-weight fabric made in Europe by the Miroglio Lana mill. The relaxed fit has dropped-shoulder shaping and four pockets. Talk about power dressing. 

16/17

Hobbs Maya Suit In Black

Hobbs black suit© Hobbs

Sizing Details

Both the blazer and the trousers are available in sizes 6-22, and there's a handy size guide section on the Hobbs' website to double check the fit. It's also available in petite.

Colours available: Black

Shipping: £3.95 Standard Delivery or free for orders over £150

Returns: Free within 28 days

A classic black suit is as timeless, and I love the work-to-weekend vibe of this suit. It would look amazing in the office and the Ritz.

17/17

Mint Velvet Grey Single Breasted Suit

Mint Velvet Grey Single Breasted Suit© Mint Velvet

Sizing Details

The blazer is available in sizes XS - XL and the trousers are categorised from 6 - 18. Mint Velvet often has three different leg lengths, choose from short, regular and long. 

Colours available: Grey, Black

Shipping: £3.95 Standard Delivery or free for orders over £100

Returns: Free within 35 days

Now, this is a fabulous suit! Add this timeless grey ensemble to your outfit rotation to inject a dose of smart-chic to your look. And both the trousers and the blazer can be worn as separates with ease.

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