Want to look effortlessly stylish whilst getting a sweat on? 6 cool girl activewear brands you need to know about

Delivering on both functionality and fashion.

models wearing cool girl activewear brands Lovall/Arne/Tala/Girlfriend Collective
(Image credit: Lovall/Arne/Tala/Girlfriend Collective)

Activewear these days is about far more than practicality. Don't get me wrong - the most important factor to consider when investing in workout gear is functionality, but there's a growing trend of activewear brands putting style at the forefront too. If you like the sound of exercise clothes that will make your sweat session a breeze but also want trendy pieces that you'll feel good in, you need to have these cool girl activewear brands on your radar.

Whether you're searching for what to wear to Reformer Pilates or want some more stylish workout pieces to pair with your best yoga flares, certain sports brands just ooze cool. Think sleek matching sets, eye-catching one pieces, street style-esque layering pieces and playful skorts that are perfect for summer workouts.

From the best gym leggings and petite gym leggings to matching loungewear sets and cosy outerwear layers, these brands have it all - and at great price points too. Keep scrolling to shop our edit of the top pieces worth investing in that can be trusted to perform in terms of both functionality and fashion.

6 best cool girl activewear brands that MC UK Editors love

1. Arne

arne Womens Active Square Neck Vest

(Image credit: Arne)

Arne Women's Active Square Neck Vest

Reasons to buy

+
Sleek style
+
Multiple colourways
+
Can be worn for workouts or out and about

Reasons to avoid

-
Plain design

I have a vest exactly like this in my casual wardrobe, so this is a workout top that will take you to the gym or coffee dates in style. It's made from ultra soft, stretch fabrication with improved recovery and it features an internal bra with removable pads, so you don't need to worry about a restrictive sports bra compromising your comfort.

arne Womens Active Flared Legging - Sage

(Image credit: Arne)

Arne Women's Active Flared Legging

Reasons to buy

+
Great price point
+
Multiple leg lengths
+
High waistband

Reasons to avoid

-
Petite lengths sell out quickly

Flared leggings just scream cool, and they're just as practical as tight-fitting cuts. With a double layer waistband to help you feel supported and the same soft stretch fabrication as the brand's other activewear products and regular and petite leg lengths, you're guaranteed a perfect fit.

2. Lovall

lovall 24/7 Revitalise Sports Bra

(Image credit: Lovall)

Lovall 24/7 Revitalise Sports Bra

Reasons to buy

+
Wide size range
+
Maternity options
+
Adjustable straps

Reasons to avoid

-
Only four colourways

Finding the perfect sports bra takes some serious trial and error, but I think this one might tick every box for low impact workouts. It's lightweight, moisture-wicking, adjustable, and with four-way stretch. I love the minimalist colourway that has a cooler feel than black, and the longer cut means it can be worn with high waisted leggings without the need for a top.

lovall 24/7 Revitalise High Waisted Leggings

(Image credit: Lovall)

Lovall 24/7 Revitalise High Waisted Leggings

Lovall's 24/7 leggings offer unmatched versatility. Choose between full length, ankle grazer, or flare, and petite, regular, and tall leg lengths. The shape-retention technology means they can be trusted to last, and the deep control waistband provides a supportive fit. Like all other Lovall pieces, the colours on offer are chic and understated but still unique enough to draw in compliments in the Pilates studio.

3. Girlfriend Collective

girlfriend collective

(Image credit: M&S)

Girlfriend Collective Float Zoe V-Neck Cross Back Fitted Vest Top

Reasons to buy

+
Unique silhouette
+
Multiple colours
+
Part of a matching set

Reasons to avoid

-
Not suitable for high impact

To me, Girlfriend Collective is the epitome of style and substance. Not only is the brand brilliantly size inclusive, but they offer pretty much every activewear piece you could need. This V neck top is just as practical as a regular tank for low impact workouts, but infinitely more fashion-forward.

girlfriend collective green skort

(Image credit: M&S)

Girlfriend Collective High Rise Skort

Reasons to buy

+
Hidden pocket
+
Sweat wicking
+
Multiple colours

Reasons to avoid

-
May be a bit long on petites

It's harder than you would think to find a skort that's comfortable enough to do a variety of workouts in, but I think this one has managed it. The slightly longer cut means you don't have to worry about it riding up too much, and it features hidden pockets to hold the essentials. Ideal for jogging, walking, or even Pilates, it is a brilliant stylish investment.

4. Oner Active

oner active blue hoodie

(Image credit: Oner Active)

Oner Active Foundations Oversized Graphic Hoodie

Reasons to buy

+
Comfy and cosy
+
Trendy design
+
Great for layering

Reasons to avoid

-
Bigger sizes sell out fast

Oner Active is extremely underrated - it's producing a huge variety of activewear pieces in unique colourways and silhouettes that you won't find elsewhere. This cosy hoody is the ideal layering piece for travelling to and from exercise classes, and there are also matching joggers available.

Oner Unified Scoop Back All In One Long

(Image credit: Oner Active)

Oner Active Unified Scoop Back All In One Long

Reasons to buy

+
Two leg lengths
+
Stylish design
+
Ideal for Pilates or yoga

Reasons to avoid

-
Not the most practical item

Exercise onesies are my guilty pleasure. I think they look so chic and make me feel much more put together than when I wear leggings. I love this scoop back style and the different leg lengths on offer, and the built-in bra ensures lasting comfort and support.

5. TALA

Tala Wrap Around Cardigan

(Image credit: Tala)

Tala Wrap Around Cardigan

Reasons to buy

+
Cosy layer
+
Adds style to workout looks
+
Comfortable, light fabric

Reasons to avoid

-
Not sweat-wicking

The balletcore hype isn't over yet. If you want to master the Pilates Princess look, a wrap cardigan like this is essential - and it is the ideal layering piece for wearing between classes. The lightweight fabric makes it suitable for low impact workouts like yoga and Pilates, but be aware that it isn't sweat-wicking; this is a predominantly fashion-driven pick.

tala DayFlex Built-in Support Adjustable Tie Side Vest - Buttermilk

(Image credit: Tala)

Tala DayFlex Built-in Support Adjustable Tie Side Vest

Reasons to buy

+
Could be worn casually
+
Adjustable length
+
Matching bottoms

Reasons to avoid

-
Not the most practical colour

I never knew I needed an adjustable workout top until I found this. The ruched sides mean you can switch up the length, and the texture adds that little something extra to a monochromatic look. It also has a built in bra so you can wear it without the need for an extra layer if you're sticking to softer workouts.

6. Lounge

lounge tank top

(Image credit: Lounge)

Lounge Essential Tank Top

Reasons to buy

+
Very affordable
+
Part of a matching set
+
Soft stretch fabric

Reasons to avoid

-
May not be as high quality as pricier brands

If you want to get the cool girl look without breaking the bank, Lounge is a great place to look. The brand's activewear offering isn't huge, but there are several sleek matching sets that come at a great price. This understated tank can be paired with anything and has that 'clean girl' feel.

lounge crossover leggings

(Image credit: Lounge)

Lounge Crossover Leggings

Reasons to buy

+
Chic crossover design
+
Two leg lengths
+
Unique colour

Reasons to avoid

-
No tall length

A crossover waistband is a brilliant way to elevate your workout look without deviating from the pieces you know you feel comfortable in. This khaki colour is just as chic as black but slightly more interesting, and it goes with any colour top in your collection.

Amelia Yeomans
Junior Shopping Editor

Amelia is currently Acting Junior Shopping Editor at Marie Claire UK. With a keen eye for lifestyle trends and a focus on quality over quantity, she is very clued up on the best products and brands on the market. She previously worked as a senior writer for woman&home, covering everything from product reviews and nail art trends to reporting on fashion weeks and the best-dressed celebrities at red carpet events.