There is no denying the performance boost that comes from a good-looking activewear set. Whatever your sport, finding clothing that flatters your silhouette, supports high-impact movement, and survives the squat-test is essential and easier than ever with so many great athlesiure and sports brands.Whether you are hitting summer fitness goals, unrolling a yoga mat for the first time, or training to smash your 5k running personal best, your apparel should inspire confidence. We are currently in a golden era of textile innovation, where moisture-wicking, four-way stretch technical fabrics meet hyper-flattering, compression designs, making it a great time to shop.To help you cut through the noise, we’ve curated a comprehensive directory of the finest athleisure labels available online and on the UK high street. We’ve covered all bases here, from accessible high-street heroes to stylish street-ready luxury boutiques and sustainable shops with eco credentials so read on for the best for every need, body type and budget.Read more: 10 best gym leggings for every kind of workoutBest high street activewear brands AdanolaManchester-head quartered, Adanola is a more recent arrival in the activewear space and has moved quickly to cement its place into many sports and athleisure wardrobes. Even the likes of Kendall Jenner adore its off-duty sweats and sculpting sets.Adanola ultimate leggingsAdanola ultimate cross back braAdanola distressed varsity washed oversized hoodieShop Adanola.com nowAdidas The brand instantly recognisable by the iconic three stripes, Adidas is loved by many (including us). This German manufacturer is known for producing hard-working, performance-driven sportswear that passes the sweat test every single time. From its popular boost running shoes to more modern pieces, Adidas is a go-to brand for HIIT, running and everything in between.Adidas tennis climacool dress proAdidas all me flare leggingsAdidas Adizero Running Gel Pocket Crop Long-Sleeve TopShop Adidas.co.uk nowAsosAsos offers an extensive roster of fitness brands, including Adidas, Nike and Reebok – but did you know it also has its own sportswear line named 4505? Expect minimalistic basics that work just as well for an afternoon catching up on Netflix as they do for Pilates.Asos 4505 active medium support sports bra with removable padding in ocean blueAsos 4505 Icon soft touch zip up studio long sleeve top in chocolateAsos 4505 Curve Icon active high support sports bra with removable padding and adjustable strapsShop Asos.com nowH&MWhen it comes to activewear, Swedish fast-fashion clothing company H&M offers affordable, fuss-free, beyond-the-gym staples. If you’re after basics such as a pair of high-waisted, seamless black leggings or a racerback tank, look no further.H&M Sports bra with SculptMove™H&M High Waist Cycling shorts with ShapeMoveH&M Sports vest top with CoolMoveShop Hm.com nowM&SM&S’s Goodmove range is both affordable (sports bras are available from £12, Marksandspencer.com) and technical – it also uses sustainable fabrics such as recycled polyester. Featuring pretty designs, the printed leggings and lightweight running jackets are certain to make a statement, too.M&S Goodmove Flexifit Medium Support Sports BraM&S Goodmove Funnel Neck Zip Up Relaxed JumperM&S Goodmove Go Move Cool Comfort Embossed High Waisted Gym LeggingsShop Marksandspencer.com nowNew BalanceNew Balance is globally recognised for good reason. Just take a look at the brand’s running leggings and breathable tanks to witness its commitment to innovation. Forget trends, this sportswear brand is only interested in the kit that actually enhances your workout, so you can always perform at your best.New Balance interlock pantNew Balance RC Pocket Legging 25New Balance RC Essential Short 5Shop Newbalance.co.uk nowNikeWith every fashion brand wanting to get into activewear, we have to pay tribute to the original king of the bracket, aka Nike. Say goodbye to boring shorts and tees, and release your inner athlete with fashionable and functional sportswear. More recently, the brand launched its first dedicated maternity collection, Nike (M). So, what are you waiting for? Just do it.Nike Pro Women's Mid-Rise 7.5cm Biker ShortsNike Zenvy Women's Dri-FIT Tank TopNike Zenvy Women's High-Waisted Capri LeggingsShop Nike.com nowUnder ArmourWhether you’re striving for a flow-state run or weight training in your bedroom, Under Armour’s extensive product range is designed to steer you through your toughest workouts. Its latest technology – Iso Chill – provides additional breathability and ventilation via laser perforation.Under Armour motion women's skortUnder Armour vanish elite women's leggingsUnder Armour vanish seamlessShop Underarmour.co.uk nowBest luxury activewear brands Adidas by Stella McCartneyRenowned fashion designer Stella McCartney always pushes the boundaries, blurring performance activewear with whacky contemporary shapes and classic styles. Fashion-led and fitness-ready, the “beach defender” collection even offers sustainable, tactical performance wear designed for use on land and in the water.Adidas by Stella McCartney logo tank topAdidas by Stella McCartney Scuba HoodieAdidas by Stella McCartney Running ShortsShop Adidas.co.uk nowAlo YogaHailing from Los Angeles, the home of healthy living, Alo Yoga Sportswear offers flattering and flexible yoga pieces designed to meet the needs of LA’s rich and famous. Bright colours such as neon apricot orange are sure to boost your mood (and everyone else’s).Alo airbrush better together braAlo accolade 1/4 zip pulloverAlo alosoft back for more teeShop Aloyoga.com nowBeyond YogaAlso from LA, Beyond Yoga cleverly merges comfort with a pared-back design. The brand’s luxuriously soft fabrics, neutral colours and flattering designs are perfect for layering and plead to be worn long after your yoga practice has finished.Beyond Yoga spacedye layered long line braBeyond Yoga places to go UV protection half zip jacketBeyond Yoga spacedye slim racerback cropped tankShop Beyondyoga.com nowFree PeopleThe brand known for its boho fashion and clothes for free-spirited women, Free People also boasts a stylish and laidback activewear section, FP Movement. From the softest Americana activewear to ready-to-wear hiking get ups, there’s something for every sport and wellness activity. Free People carpe diem shortsFree People never better 5" bike shortsFree People love tankShop Freepeople.com nowLNDRThis is another great premium sportswear brand that aims to create collections that look just as good around town as they do inside the gym. LNDR was founded by three active, international women based in London, who wanted to create a brand around “the lifestyle we want to live, the products we want to wear, and the people we wanted to hang out with”. LNDR feels classic with its familiar sporty vibe – wear a coordinating set to a HIIT or spin class.LNDR obsession 7/8 leggingLNDR power cropLNDR obsession 6 shortShop Lndr.uk nowLululemonLululemon is one of the best-known (and most-loved) luxury sportswear brands in the world. Whether you’re a runner after sweat-wicking, flattering separates or a yogi needing second-skin, high-waisted leggings that won’t slip when you’re in a downward dog or attempting a headstand, this Canadian label is full of high-quality, timeless looks. We want everything.Lululemon women's fast and free singletLululemon flow Y ruched bra light support B_C CupLululemon define cropped jacket nuluShop Lululemon.co.uk nowPE NationIf you follow Kayla Itnes or Kelsey Wells on Instagram, you’ll be familiar with this retro-inspired brand from Australia. Made for sweaty HIIT and strength sessions, PE Nation is filled with bold, boyish styles and sporty colour-block combinations.PE Nation oversized long sleeve tee in dark navyPE Nation paramount sports bra in dark navy & college redPE Nation paramount sports bra in dark navy shineShop Pe-nation.com nowSoar Founded in London by designer and runner Tim Soar, this brand embraces design technology, sports science and the real-world experiences of runners into its run, trail and race wear. Expect ultra-breathable mesh, silk-blend T-shirts, fast-wicking vests from this ultra cool running brand. Soar hot weather shortsSoar cubitts cirrusSoar rainout shellShop Soarrunning.com nowSweaty BettyDesigned by women, for women, this UK-based label – named after the founder’s determination to make it cool to sweat – is on a mission to empower women through fitness. Known for its unmissable colourful prints and hi-tech fabrics (the power leggings are famous for a reason), Sweaty Betty is often the first pick from our workout wardrobe – we love the brand’s cutting-edge activewear as much as we love the brand ethos.Sweaty Betty power gym leggingsSweaty Betty power pulse braSweaty Betty breathe easy mesh T-shirtShop Sweatybetty.com nowThe UpsideIf you like leopard or zebra print, you’ll love this chic activewear label from Australia. Made from technical fabrics in sophisticated silhouettes, The Upside will elevate your performance (and you’ll look cute in the process).The Upside montage speechless shortThe Upside Oxford 25in midi pantThe Upside Amelia tank topShop Theupside.com nowVuori Known for its premium fabrics and versatile designs, Vuori has gained a loyal following for creating clothing that effortlessly transitions from workouts to everyday wear. What sets Vuori apart is its focus on high-performance materials, such as its signature dreamknit fabric, which offers an ultra-soft feel without compromising durability or stretch. Vuori’s commitment to sustainability is also key, with a focus on ethical manufacturing practices and eco-friendly materials such as recycled polyester.Vuori daily form leggingVuori luna piped shortVuori daily form braShop Vuoriclothing.co.uk nowBest sustainable activewear brands BAMWhether you’re getting fresh air on a hike or heading to a pilates class, BAM – Bamboo Clothing – makes athleisure that is “inspired by the planet and designed for adventure”. The best part about activewear made from bamboo jersey? Not only is it soft and breathable, it’s also guaranteed opaque – so the leggings are completely squat-proof.BAM Enduro Sport ShortsBAM Women’s Gathered Hem Air Bamboo T-ShirtBAM Ultimate Balm High Waisted LeggingsShop Bambooclothing.co.uk nowGirlfriend Collective favours minimalist, size-inclusive and eco-friendly pieces (Girlfriend Collective)Girlfriend CollectiveThis Seattle-based start-up launched with a bang stateside after it offered a free pair of leggings to its first customers – they ran out of stock on their first day. Since then, Girlfriend Collective has built a cult following by designing minimal, size-inclusive, eco-friendly pieces – 25 recycled water bottles make a single pair of its luxe compression leggings (£80, Johnlewis.com). Expect pretty, Instagramable shades such as terracotta, powder blue and apricot, and high waistlines that don’t roll down.Girlfriend Collective compressive high rise full length leggingsGirlfriend Collective Estrella run jacketGirlfriend Collective high rise bike shortsShop Girlfriend.com nowTala“Slow fashion, sustainable style” is Tala’s mantra. Created by influencer and Oxford University graduate Grace Beverley, if you’re looking for workout leggings that mould to your body, in bold colours made from upcycled, recycled materials or from factory offcuts that would have otherwise gone to landfill, you’ll probably adore these.Tala sculpt seamless scoop neck camiTala cocoon zip through hoodieTala sculpt seamless ultrasculpt shortsShop Wearetala.com nowFor more recommendations, check out the supermarket clothing lines rivalling Zara and Mango