
One Piece Swimsuits
The perfect one-pieces for all your water adventures. Responsibly made with recycled fabrics.
Filters
One Piece Swimsuit Boyleg Cut - Black
Racerback Swimsuit High Cut - Black
Yemaya One Piece Swimsuit Full Coverage - Black
Yemaya One Piece Swimsuit Full Coverage - Red
Yemaya One Piece Swimsuit Full Coverage - Blue
One Piece Swimsuit Full Coverage - Black 2025
One Piece Swimsuit Full Coverage - Black
One Piece Swimsuit Full Coverage - Aquamarine 2025
One Piece Swimsuit Full Coverage - Moon
Racerback Swimsuit High Cut - Red / Pink
Liberty Racerback Swimsuit High Cut - Blue / Kaki
Embrace Swimsuit Full Coverage Bust Support - Red
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The perfect one-piece swimsuits for all your water adventures! It stays in place even after a crazy wipeout.
Offering a bit more warmth and protection than your typical swimsuit but loads more style. Protects your skin from midday sun to stay on the water the whole day long.
These handmade swimsuits are designed in Amsterdam and sustainably made from recycled plastic bottles in Portugal.
Whether you surf, kitesurf, windsurf, swim, dive, or snorkel these one pieces are your ultimate companion on your next water adventure.
About this collection
One-Piece Swimsuits for Every Water Adventure
Welcome to WALLIEN’s collection of high-performance women's one-piece swimsuits—where function meets style for all your aquatic adventures. Perfect for both indoor and outdoor swimming, surfing, kitesurfing, windsurfing, snorkeling, stand-up paddling, and even scuba diving, these suits provide comfort and confidence no matter how you choose to explore the water.
Crafted from luxurious Italian recycled fabrics made from reclaimed fishing nets and other waste, our one-piece swimsuits offer exceptional durability, softness, and stretch. These suits provide UPF 50+ sun protection to shield your skin from harmful UV rays and are chlorine-resistant for long-lasting use in the pool.
Why Choose WALLIEN One-Pieces?
1. Eco-Friendly Fabrics: Sustainability is at the heart of every piece we create. Our swimsuits use innovative recycled materials, giving new life to ocean waste and helping to protect marine ecosystems.
2. Tailored for Women: Our one-piece swimsuits are made to fit the female form perfectly, with features like built-in bust support, flattering cuts, and secure fits that stay in place during active movement.
3. Versatility and Style: Whether you’re looking for a long-sleeve swimsuit for sun protection, a retro-inspired one-piece, or a sleek minimalist design, our collection offers something for every water sport and style preference.
4. Made for Water Sports: our collection delivers the performance trusted by water sport athletes for competition-grade excellence.
If you're looking for more coverage than a bikini, WALLIEN's female one-piece swimwear is perfect for you. They are available in a variety of styles and cuts.
Long-Sleeve One-Piece Swimsuit
Racerback One-Piece Swimsuits
High Cut One-Piece Swimsuits
Front Zip One-Piece Swimsuits
Looking for added warmth? Explore our womens shorty springsuit wetsuits made from Yulex® natural rubber, perfect for colder waters and sports like surfing, windsurfing, and diving. Or, for mix-and-match summer vibes, check out our bikinis collection for stylish two-piece options.
Join the WALLIEN Community
WALLIEN is more than just a brand—it’s a movement dedicated to empowering women in watersports. Our story began with a passion for the ocean and a commitment to creating eco-conscious, high-performance gear tailored for waterwomen. From sleek monochrome suits to bold statement prints, our pieces reflect both strength and femininity.
Shop Women's One-Piece Swimsuits Online
Whether you’re looking for stylish one-pieces in Australia, the UK, USA, Nederland, Deutschland, or France, WALLIEN has you covered. Our local distribution hubs in Australia, the UK, the USA, and the EU ensure fast shipping and a hassle-free shopping experience, so you can focus on enjoying the water.
Discover why women worldwide choose WALLIEN for their adventures. Explore our full one-piece swimsuit collection today and dive into a world of sustainable performance and timeless style.
Discover more in our FAQ
How should a one-piece swimsuit fit?
Your one-piece should fit snugly and feel supportive but still comfortable. Look for a “second-skin” fit – the fabric should mold to your body without any sagging or gapping, and straps or seams shouldn’t dig in. When you move, nothing should slip out of place. Our WALLIEN suits are tailored to the female form for exactly this reason, balancing a close fit with soft stretch so you get support without that stranglehold feeling. If you’re between sizes (or have a longer torso), consider sizing up for a better length and comfort – a properly fitting one-piece gives you confidence to dive in and perform, no distractions. For more information, visit our blog to find the perfect swimsuit fit.
How do I choose the right one-piece swimsuit style for me?
Start with your activity and personal comfort. If you’ll be ducking under waves or doing dynamic water sports, a one-piece with a secure racerback or cross-back will stay put best. For long swimming sessions or surfing, you might prefer higher necklines or sleeves for extra coverage (and sun protection). If you’re mostly lounging or casual swimming, you can explore stylish cuts like high-leg openings, zippers, or bold prints – just make sure the suit still supports your bust and bottom comfortably. WALLIEN offers everything from sleek athletic designs to chic color-block styles, so you can pick a silhouette that matches your performance needs and personal taste. The right style is the one that makes you feel confident, supported, and ready for fun in the water.
Do one-piece swimsuits provide enough support and coverage?
Yes – a quality one-piece will absolutely support your bust. Many one-piece swimsuits (like ours) come with built-in shelf bras or supportive lining to keep your chest secure during movement. WALLIEN’s designs feature integrated bust support, and our customers rave that the suits are “flattering” and “stay in place perfectly”. Unlike some bikinis, a well-made one-piece won’t shift around, so you can dive, surf, or swim laps with confidence. For larger busts or high-impact activities, look for styles with thicker straps, higher necklines, or even zip fronts for added security. In any case, you’ll get full coverage and a worry-free fit around the bust in a one-piece, without sacrificing style. For more information, visit our blog.
What materials are best for one-piece swimsuit?
The best swimsuits use high-performance, stretchy fabrics that can stand up to sun, salt, and chlorine. WALLIEN one-pieces, for example, are crafted from premium Italian recycled nylon (made from reclaimed ocean plastics) blended with Lycra® for stretch. This means our suits are not only eco-friendly but also exceptionally soft, quick-drying, and durable. Look for materials labeled as chlorine-resistant if you’ll swim in pools frequently – these resist fading and fiber breakdown. Quality fabric should offer 4-way stretch to move with you and snap back to shape, so your suit doesn’t bag out. Bonus: our Italian fabric even provides UPF 50+ sun protection, proving that sustainable material can deliver top-notch performance and longevity. Visit our blog for more information.
What are the benefits of choosing a one-piece swimsuit over a bikini?
One-piece swimsuit offers enhanced coverage and support, making it ideal for active water sports and everyday wear. Its streamlined design minimizes drag, while modern cuts and eco-friendly fabrics ensure both comfort and style.
How do I care for my one-piece swimsuit to ensure its longevity?
To keep your swimsuit looking and performing like new, rinse it in cool fresh water after each swim. This washes out salt, chlorine, and sunscreen that can otherwise dull the color or weaken the fabric. It’s best to avoid washing machines or harsh detergents – even gentle machine cycles can damage swimwear fabric and fade colors. Instead, handwash with mild soap if needed. Gently squeeze out water (don’t wring it like a towel) and lay your suit flat to dry in the shade, which helps it maintain its shape and elasticity. Also, try to avoid rough surfaces (like sitting directly on concrete pool decks) to prevent snagging the material. With a little TLC – quick rinses, gentle washing, and flat drying – your one-piece will stay vibrant and ready for many seasons of adventures. Visit our blog for more information.
How do I pick a one-piece swimsuit that flatters me?
The key to feeling great in a one-piece is finding a cut that complements your shape and highlights what you love. Fortunately, one-pieces come in many silhouettes. If you want to accentuate your waist, try a style with color-block panels or a belt detail. For more bottom coverage or a curvier look, a boyshort or retro high-waist cut can be very flattering. High-cut leg openings will elongate your legs, while a plunging neckline or open back can add a bit of glam. It really comes down to what makes you feel confident. WALLIEN focuses on designs that celebrate the female form – our suits have thoughtful seaming and stretch that hug in all the right places without pinching. Remember, confidence is the most stylish thing you can wear. When you’re comfortable and supported in your swimsuit, you’ll automatically stand taller and shine brighter. So choose a quality one-piece that fits well and aligns with your personal style, and you’ll always look fabulous by the water.
Are one-piece swimsuits good for surfing and water sports?
Absolutely. Modern one-piece swimsuits are ideal for active water sports like surfing, paddle boarding, and diving. Unlike bikinis, a well-designed one-piece stays put through duck dives and wipeouts, so you won’t be adjusting your suit mid-session. WALLIEN one-pieces are co-created with water athletes for a secure, performance-driven fit – meaning you can focus on catching waves or doing laps, not on wardrobe malfunctions. These suits give you full range of motion and confidence, whether you’re carving up a wave or diving for a volleyball.
Are WALLIEN one-piece swimsuits eco-friendly?
Yes – sustainability is at the heart of WALLIEN. Our one-piece swimsuits are made with eco-friendly materials like recycled plastics (including reclaimed fishing nets and plastic bottles) to help reduce ocean waste. We craft each suit to be high-performance and long-lasting, so you can enjoy your water sports knowing you’ve made a greener choice for the planet. For more information, visit our sustainability blog.
How do I choose the right size and fit for a one-piece swimsuit?
For a perfect fit, refer to our detailed sizing guide and consider your measurements carefully. A well-fitted one-piece should hug your curves without feeling restrictive, allowing for maximum mobility and confidence in the water.
What are your delivery times & shipping costs?
Shipping and Returns for the Netherlands
- Free Shipping on orders over €99
- Free Return within 30 days
- Next Business Day Delivery if ordered before 15:00 CET
- Shipped from within NL
Terms & Conditions:
- Returns and exchanges within 30 days of receipt (14 days for items on sale)
- Free returns exclude items on sale
- Returns need to be in sellable condition (see FAQ)
- Returns/exchanges for items on sale are subject to a handling fee to cover the cost of the return shipment label
- The handling fee will be charged through our returns portal
Do I have to pay for import duties?
We ship from within the EU, UK, Australia, and the USA. So orders from within these regions do not have any additional import duties.
Import duties may apply to orders outside the EU, UK, Australia, and USA. Please check your local legislation for more information.