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Women's One-Piece Crossback Sports Swimsuit — Quick-Drying Athletic Swimwear for Active Swimming & Training | Koossa


Low stock!
Free delivery Free UK delivery — includes tracking
Money-back guarantee 30-day money-back guarantee
Colour:Red
Size:

Size Guide

Women's Clothing · All measurements in cm

SizeUKBust (cm)Waist (cm)Hip (cm)
XS6–880–8460–6486–90
S8–1084–8864–6890–94
M10–1288–9468–7494–100
L12–1494–10074–80100–106
XL14–16100–10680–86106–112
XXL18–20106–11486–94112–120
3XL20–22114–12294–102120–128

All measurements are body measurements. If you are between sizes, we recommend sizing up for a more relaxed fit.

In-store: Not available
Online: Almost sold out
Dispatched Thu 16 Jul
🇬🇧 Free UK Delivery
2-Year Guarantee Quality assured
30-Day Returns Hassle-free

Classic Athletic One-Piece Swimsuit with Dynamic Crossback Detail

This one-piece sports swimsuit combines functional design with elegant simplicity. Featuring a classic round neckline and supportive wide straps, it delivers secure, confident coverage for every swim. The crossback detail adds a dynamic, sporty finish whilst allowing complete freedom of movement through the shoulders. Finished in a graceful ombré gradient, this swimsuit transitions seamlessly from pool to beach with understated sophistication. The integrated classic brief ensures reliable coverage and a flattering, athletic fit for active days in the water.

Why You'll Love It

  • Quick-Drying Fabric: Advanced performance material dries rapidly and retains its shape, swim after swim.
  • Crossback Straps: Stylish crossed detail offers freedom of movement and secure support during training or leisurely swims.
  • Integrated Classic Brief: Provides dependable coverage with a sporty, confident fit.
  • Elegant Ombré Gradient: Subtle colour transitions create a contemporary, refined look suitable for all ages.
  • Supportive Wide Straps: Designed to stay comfortably in place without digging in, perfect for extended wear.
  • Shape-Retaining Construction: Elastic performance fabric maintains its form and fit, season after season.

Perfect For

Whether you're swimming lengths at your local pool, enjoying a morning sea dip, or spending a relaxed day by the water, this one-piece sports swimsuit adapts beautifully to your active lifestyle. Its classic silhouette and reliable construction make it an excellent choice for women who value both performance and timeless style. Pair it with a lightweight cover-up and sun hat for a complete, polished poolside ensemble. Ideal for those who appreciate swimwear that performs as well as it looks, offering confidence and comfort in equal measure.

Free UK delivery on every order — no minimum spend required.

Your order is carefully packaged and sent with full tracking, so you always know exactly when to expect your delivery.

Order today and we'll dispatch it the next working day.

Not quite right? You have 30 days to return your purchase — no questions asked.

We also offer a 2-year guarantee against manufacturing faults, because we stand behind everything we sell.

1
Contact us Email us with your order number and reason for return.
2
Send it back Pack the item securely and post it to our returns address.
3
Receive your refund Once received, we'll process your return and refund within 5 working days.
Fit Guide ✓  True to Size
Runs small
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Women's One-Piece Crossback Sports Swimsuit — Quick-Drying Athletic Swimwear for Active Swimming & Training | Koossa
Women's One-Piece Crossback Sports Swimsuit — Quick-Drying Athletic Swimwear for Active Swimming & Training | Koossa Sale price£34.95
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Frequently asked questions

How do I know this will fit me?
Each product page includes a detailed size guide. If you're between sizes, we recommend sizing up for a more comfortable, relaxed fit. Our customer care team is also happy to advise — simply get in touch before you order.
What is your returns policy?
We offer a straightforward 30-day returns policy. If you're not completely satisfied, contact our team with your order number and we'll guide you through the process. Refunds are issued within 5 working days of receiving your return.
How do you ensure the quality of your clothing?
Every garment in the Koossa collection is selected for its fabric quality, construction, and longevity. We work with carefully chosen suppliers and assess each piece for fit, finish, and durability before it reaches you.
Are the colours accurate in the product photos?
We photograph each item in natural light to represent colour, texture, and drape as faithfully as possible. Please note that screen settings can vary slightly, but we do our best to ensure what you see is what you receive.
When will my order arrive?
Orders placed today are dispatched the next working day. All deliveries include full tracking so you can follow your parcel every step of the way. Free UK delivery is included on every order, with no minimum spend.
Why shop with Koossa?
Koossa was created for those who dress with intention. We curate timeless, well-made clothing and accessories for the over-50s — people who value quality over trends, and style over noise. Every order is backed by free delivery, easy returns, and genuine customer care.
The Koossa team in our boutique The Koossa team
Our Promise

We stand behind every piece we sell

We started Koossa because we believed fashion could be both timeless and trustworthy. Every garment is personally selected for its quality, cut, and craftsmanship. If it wouldn't meet our own standards, it doesn't reach yours. That's not a policy — it's simply how we work.

30day
No-questions returns window
0.5%
Of customers ever use it
5day
Refund processed within
30-Day Money-Back Guarantee Not satisfied? We'll refund you in full — no forms, no fuss. Simply contact us within 30 days.
Free UK Delivery On every order
Easy Returns 30-day hassle-free returns
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