My favourite swimmer! it's sooo beautiful but sturdy at the same time!
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Our Karma Collection fits a little tight, however this is recommend for the best fit when swimming. We recommend going for your usual swimsuit size, or sizing up for a more relaxed fit. For exact measurements, please see our size chart above.
Tara & Jade both wear a size 30.
- Super-soft, Luxe-Eco fabric made from recycled ocean plastic
- Ultra-chlorine resistant, perfect for swim training
- Double-lined for support and coverage
- UV protection
- Medium bum coverage
£3.95 UK shipping or FREE over £90.
We ship worldwide. Rates are calculated at checkout.
Our classic design, with cross-back straps & high cut legs for the ultimate speed-efficient swimsuit. All of our Karma® swimsuits are sustainably made using recycled yarn & ocean plastic.

Please check our sizing page to find your best fit. For personalised help, chat to an expert by emailing support@instantswimwear.com
Yes! We ship worldwide, and you'll be able to track your order to your door.
All of our swimsuits are designed for training! Every piece is chlorine-resistant, but our Longevity suits are the most durable.
We have a super easy returns and exchange process, using our online returns portal. All returns & exchanges must be submitted within 14 days.
Overall rating: 4.9 / 5 from 644 reviews.
My favourite swimmer! it's sooo beautiful but sturdy at the same time!
Helia N. 5/5 Verified
They are confortable, and also i did’nt had it warm
Elshani K. 5/5 Verified
Love it. 5 star.
Pauline B. 5/5 Verified
I really love my new costume from instant swim! its such a simple but chic style and the cross back design elevates it so much! It's really comfy and the material feels super durable - thanks so much!
Georgia C. 5/5 Verified
Love it. Fits snug but so flattering. I got a size small. I’m 5’4” 135lbs
Deanna B. 5/5 Verified
This swimsuit is incredible! Finally a flattering swimsuit available in tall where there's no risk of a boob popping out! The straps are SO comfortable that you don't notice them at all - I regularly swim 2k breaststroke and have zero red marks afterwards. I do find it sometimes rides up a little bit, but it's still comfortable even when it does. I love it and want more!
Katie M. 5/5 Verified
Great and versatile beautiful color in the summer
Madonna A. 5/5 Verified
Such a nice cossie, I literally get compliments everytime I wear it!
Emily T. 5/5 Verified
My second swimsuit from Instant Swim. Absolutely love it. I ordered the Too Blue and obsessed with it so I decided that I need the Graphite and Matcha as well. Love them all ☺️
Phoebe N. 5/5 Verified
Best swimming costume I've ever had. Very supportive and super flattering.
Jemma L. 5/5 Verified
Supreme costume, allows my body full range of motion at Beach Yoga!
Helena E. 5/5 Verified
Great quality Swimwear, flattering, sexy not frumpy in an y way. Love the styles, supportive.
Natasha G. 5/5 Verified
Absolute best swimsuit I’ve ever owned. Perfect for training but pretty enough for the beach too!
Charlotte P. 5/5 Verified
These are the only swimmers I’ve worn throughout my entire tri training! I love them so much! Finally investing in another pair because the polka dot ones are tooooo cute
Adina S. 5/5 Verified
Absolutely LOVEEEEEE.
Sophie S. 4/5 Verified
I got this as a gift for my partner; she loves the colours, thinks it's comfortable to wear, easy to swim in and is flattering
Feroz K. 5/5 Verified
My wife loved it.
Obed M. 5/5 Verified
Love this costume for dance, swim, yoga, and paddle activities, coaching or training sessions. Have purchased 3 costumes to serve me whole week at HE AQUATICS.
Helena E. 5/5 Verified
I love it
Laura L. 5/5 Verified
Great quality. Fit is great. Definitely go smaller than you expect as the material stretches a bit once wet. Size XS
Morne J. 5/5 Verified
So cute! Cant wait to get more colours!
Dominika Z. 5/5 Verified
Love the colour, style and fit! ☺️
Alannah P. 5/5 Verified
I love this swimsuit. I also have the Raya one-piece. I am 5 foot 3, 150lb. It's higher cut than the Raya swimsuit, but it still very comfortable and secure for competitive and intense swimming. I absolutely love the colour, and can't wait to get it in other colour options!
Olivia J. 5/5 Verified
I love this swim suit. Great quality fabric, comfortable and looks great. Love it so much I bought a second 😊 Thank you instant swim
Jenny H. 5/5 Verified
Perfect vacation one piece 💚
Sarah R. 5/5 Verified
The suit is amazing! Fits perfectly and is super comfortable!
Małgorzata Z. 5/5 Verified
Super cute!
Tracy T. 5/5 Verified
Great fit
Lucian G. 5/5 Verified
beautiful
Tara S. 5/5 Verified
I love the cut on these swimmers. The fabric is butter soft, they are so well-made. I’m nearly 50, I had breastfed two kids, and so I was really hesitant to go for a single piece suit that didn’t have specific padding or support or cups, as I thought it would completely flatten my chest. However, the small pleats either side of the bust line are subtle, but still allow me to have some shape. I was hesitant also to wear such a high cut on the booty, but my teenage daughter says they are her favourite pair of swimmers on me…. even with my Lipedema legs, I feel comfortable and not so old in these swimmers. Thank you for such a lovely cut!
Jessie D. 5/5 Verified
Really nice quality material and loveee the design of the back! I am 5ft 10 and I struggle to fine one piece swim wear that is comfortable. So nice to have a height option! Love this piece!
H W. 5/5 Verified
Love the swimmers! So flattering and great quality. Arrived to Australia quickly as well.
Natalie G. 5/5 Verified
Love it!
Yasmine L. 5/5 Verified
Received this suit in the US in an about 1 week. Color is exactly as shown. Quality is incredible, took it for a long swim and was very happy with performance. Kept its shape, moved easily in it and very easy dry. Currently training for a 70.3 and will definitely be ordering in more colors!
Alina M. 5/5 Verified
I absolutely love this swimsuit! The quality is outstanding, the fabric feels premium, durable and holds its shape beautifully. The Ferrari red is such a stunning, rich colour and I get so many compliments wearing it. The style is effortlessly chic with those crossback straps, and it looks just as good as the photos.🏎️ I recently got back into swimming after years away from the pool, and this suit has genuinely made me excited to get in the water every day. It feels like a real treat to wear something this beautiful for my daily swims. My only reservation — and this might just be a sizing question rather than a flaw — is that being more curvy, I found the fit around the sides of the chest felt a little loose on top. I went with M (32) Regular but I’m genuinely unsure whether I should have sized up or down to get a better fit through the bust. If you’re curvier, I’d recommend trying both sizes if you can before committing. Would love some guidance from the brand on this! ❤️ Overall, a gorgeous, high-quality piece I’m so happy to have in my swimwear collection. ⭐⭐⭐⭐
Kamya H. 4/5 Verified
Kamya H. 4/5 Verified
such a flattering one piece. i feel beautiful and sporty at the same time. very streamlined. usually swimsuits hold me back when im being active in the water but this is awesome!!
Sanskriti B. 5/5 Verified
Obsessed with this swimming costume! Great for actual swimming & comfortable
Lilymae H. 5/5 Verified
This is my third swimsuit from Instant Swim (it’s getting out of hand!) Always super comfortable and flattering. I love this colour way, I’ve had a lot of people ask where it’s from!
Emma M. 5/5 Verified
Bought my first one during my first pregnancy and it’s so flattering I love it so much, had messaged the instagram page for advice on size and they were so helpful can’t wait to get more colours
Aoife M. 5/5 Verified
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