What are thick strap swimsuits best for?

Thick strap swimsuits are designed for swimmers who prefer a more secure, supportive feel across the shoulders. They are ideal for long training sessions, lap swimming, or when you want your straps to stay firmly in place without shifting.

Are thick straps better for active swimming?

It depends on personal preference. Thick straps offer a snug and secure fit for some swimmers, while thin straps can sometimes reduce the chance of chafing, especially during open water competitions and training.

Do thick strap swimsuits have extra bust support?

No, our thick strap swimsuits do not have built-in bust support. Instead, they are fully double-lined, which provides durability, modesty, and a comfortable fit without padding or underwires.

What is the difference between the SF821 and SF811 Xback swimsuits?

The SF821 Xback swimsuit has slightly more coverage and a firmer feel, while the SF811 Xback offers a sleeker cut with less coverage at the back and shoulders. Both are chlorine-resistant, double-lined, and suitable for regular training. Choosing between them comes down to whether you prefer a more supportive or freer-feeling fit.

What are the advantages of Water Polo swimsuits compared to regular swimsuits?

Water Polo swimsuits are built for maximum durability, security, and coverage. They feature chlorine-resistant fabrics, double lining, and a high neckline with zip fastening. This makes them ideal not only for Water Polo players but also for swimmers who want a suit that lasts longer and stays in place during intense training.

Women’s Thick-Strap Swimsuits — XBack & WaterPolo Styles

Secure, comfortable, chlorine-resistant — designed with thick straps and double lining for confidence in the water

Our collection of women’s swimsuits with thick straps and double lining is designed for swimmers who value comfort, durability and peace of mind in the water. These styles are made from chlorine resistant fabrics that last longer than regular swimwear, so they’re ideal for anyone who swims several times a week or takes part in water sports.

The wide shoulder straps stay securely in place, even during training sessions, lane swimming or water fitness, which makes them a popular choice for women looking for comfortable swimsuits that don’t slip or dig in while swimming. With double lining for reliable coverage, these suits feel supportive without adding padding or underwires — making them a great option for those who want simple, streamlined swimwear with extra coverage.

We offer two unique XBack styles, so you can choose the best fit for freedom of movement and a secure cross-back hold, or opt for our WaterPolo thick-strap swimsuits with higher backs and chlorine-proof fabrics for long-lasting pool performance. Whichever you pick, every style is crafted to combine practicality, durability and timeless design.

The Two XBack Styles

➤ SF811 – The Original Plus Sizes Xback
Made with stretchier side panels for a softer, more flexible feel. This style is plus-size friendly and more forgiving on the body, making it a great option for everyday or leisure swimming without losing the signature XBack security. A popular choice for its supportive design and secure fit, the SF811 features a modest leg, full bottom, and reinforced thick straps that sit comfortably on the shoulders. Ideal for pool training, fitness swimming, and aquafit, it offers a great balance of performance and coverage.

➤ SF821 – The Extended Fit Classic Xback
Designed with a snug, structured fit. It is longer in the body, less stretchy, and has a higher neckline with a scooped back. Perfect for serious training, lane swimming, and competitive use when you need a suit that won’t shift during intense movement. If you're after extra support and length, the SF821 is your go-to. It’s especially well-suited for taller women or those looking for a more secure fit during active swimming.

Water Polo Swimsuits

Our WaterPolo thick-strap swimsuits are made with extra-durable, chlorine-resistant fabrics. They feature strong zippers and reinforced seams, high backs and strong coverage, making them the best choice for intensive pool sessions, water sports, and long-term use in chlorinated water or open water.

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Female swimmer wearing a Water Polo swimsuit with high neck and zip closure, double lined for durability and security

Why Choose Thick Straps?

Thick, supportive straps stay secure during active swimming
More comfort on the shoulders compared to thin straps
Double lining for dependable coverage
Chlorine-resistant & eco-conscious fabric – long-lasting and sustainable
Designed for curves – supportive and flattering on larger busts and fuller figures
Made in the EU by an expert swimwear manufacturer with 20+ years of swimwear expertise
Choose from vibrant prints, and two tried-and-tested Xback styles to suit your shape and preferences.

Size & Care Tips

Rinse your swimsuit in cold water straight after use
Dry flat, out of direct sunlight
Do not tumble dry or bleach
Use our Size Guides listed with every swimsuit (amongst the product images) for the best fit
Check FAQ sections on each style page
Check Blog advice for each Xback Style:

- XBack SF811Swimsuits

- Xback SF821 Swimsuits

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ØKO STOFF

Colourful Circles Delfina Bladeback Swimsuit (SF1) – Size 32 Only
Pris£38,00

For our size 32 customers, we currently have two one-piece swimsuits available in two different styles (last pieces). Both offer a performance-ready fit but are slightly different from the XBack designs described above:

On the right: The Brazilian Cut SF822
This style is a Brazilian cut training swimsuit with a high leg design and a narrower cut bottom (not a thong). It is shaped to provide a comfortable fit around the hips while maintaining security during swim training, making it ideal for swimmers who prefer a sleeker, higher-cut one-piece.
On the left: The Bladeback SF1 Swimsuit
This is a discontinued Bladeback swimsuit style, offering a fit that is similar to the XBack SF821. The Bladeback has a supportive structure with wide straps and streamlined shaping, giving swimmers a dependable alternative for active pool sessions.

LAST PIECE

Animal Print Delfina High Leg Xback Swimsuit (SF822) – Size 32 Only
Pris£44,00

Frequently asked questions

Not necessarily—it really comes down to personal preference. Some swimmers find that thick strap swimsuits feel more secure and supportive for long training sessions, while others prefer thin strap swimsuits, which can sometimes reduce the chance of chafing, especially in open water swimming or long-distance training. The best choice depends on your body shape, comfort, and the type of swimming you do most often.

Water Polo swimsuits are designed with extra durability and performance features compared to standard training swimsuits. They are made from stronger chlorine-resistant fabrics, include full front and back double lining, and feature a high neckline with strong zip fastening and reinforces seams for a secure, locked-in fit. These details make them ideal not only for Water Polo players but also for swimmers who want maximum coverage, reduced drag, and a swimsuit that will last longer in heavy training conditions.