Modern Styles in Sustainable Swimwear

How to choose swimwear that’s fashionable, planet-friendly, and built for real travel.

Sustainable swimwear is no longer a niche category. Driven by rising eco-awareness, material innovation, and circular fashion, today's best brands are proving that you can have style, performance, and environmental responsibility in one package.

This expert guide explains what makes swimwear truly sustainable, highlights the latest material and manufacturing innovations, showcases leading brands, and shows you how to choose durable, ethically produced pieces that work for real-world travel.

Key Takeaways

• Sustainable swimwear reduces waste and microplastic pollution through recycled or lower-impact materials such as regenerated nylon (e.g., Econyl®), recycled polyester, and select bio-based fibers.

• High-quality eco swimwear often lasts longer than conventional suits, improving longevity and reducing cost-per-wear.

• Look for brands that provide material transparency and credible certifications (for example OEKO-TEX®, GRS, bluesign®) plus responsible manufacturing practices.

• The best sustainable swimwear offers adjustable fits, timeless designs, and multi-purpose styling—ideal for minimalist wardrobes and frequent travellers.

• Proper care—rinsing, cold washing, and air drying—significantly extends the lifespan of any swimsuit, sustainable or not.

• As a consumer, your choices directly push the industry toward circular, low-impact production models.

Why Sustainable Swimwear Matters

Environmental Impact of Traditional Swimwear

Non-Biodegradable Synthetics

Most conventional swimwear is made from petroleum-based fibers such as nylon and polyester. These fabrics:

• Are non-biodegradable, persisting in landfills for decades or even centuries.

• Require energy-intensive production using fossil fuels.

• Rely on dyeing and finishing processes that can release harmful chemicals into waterways.

Industry and academic research consistently show that synthetic textiles are a major contributor to global plastic pollution, especially when combined with poor waste-management systems.

Microfiber Shedding

Every time you wash synthetic swimwear, it releases tiny plastic fibers known as microfibres. Laboratory studies have reported that a single wash load can shed hundreds of thousands of fibers, which often pass through wastewater treatment systems and enter rivers, lakes, and oceans.

• These fibers are ingested by marine organisms and can accumulate up the food chain.

• Microfibres have been detected in seafood, table salt, and even drinking water.

• Once released, they are very difficult to remove, making prevention at the source essential.

Choosing better-engineered fabrics, washing less often, and using microfiber-filtering solutions are practical steps to reduce this impact.

Benefits of Sustainable Choices

Reduced Environmental Footprint

Certified sustainable swimwear uses fibers and processes that consume less energy and water, and produce less waste than their conventional counterparts. For example, regenerated nylon can significantly cut the global warming impact compared with virgin nylon, because it repurposes waste materials instead of extracting new fossil fuels.

• Recycled fibers divert fishing nets, fabric scraps, and plastic bottles from landfills and oceans.

• Low-impact dyeing technologies reduce water usage and chemical discharge.

• Durable construction means fewer replacements and lower overall resource use.

Ethical, Transparent Manufacturing

Responsible swimwear brands do more than just swap fabrics. They focus on the people and processes behind each piece:

• Fair and safe working conditions throughout the supply chain.

• Third-party certifications or audits where possible.

• Local or regional production to reduce transport-related emissions.

• Publicly available sustainability reports or impact statements.

When you support brands that publish clear information about their factories, wages, and environmental initiatives, you encourage the wider industry to improve transparency and accountability.

Stylish Sustainable Swimwear Trends

Contemporary Design Directions

Bold Colours and Prints

Sustainable swimwear no longer means muted colours and basic shapes. Many eco-conscious labels now offer vibrant prints, tropical motifs, and rich solids created using lower-impact printing methods such as digital printing and certified dyes.

• Eye-catching patterns make it easy to express your personality at the beach or pool.

• Digital printing technologies typically use less water and generate less waste than traditional methods.

• High-quality recycled base fabrics keep colours bright over many seasons.

Minimalist, Timeless Silhouettes

At the same time, minimalist designs remain a core trend in sustainable swimwear. Clean lines, simple cuts, and classic colours create a wardrobe that does not go out of style.

• Timeless designs work across multiple destinations and seasons.

• A small capsule of mix-and-match pieces reduces the need for frequent new purchases, supporting a slow-fashion mindset.

• Neutral or solid colour palettes pair easily with resortwear, shorts, or skirts, extending each piece beyond the beach.

Pro tip: Choose a black, navy, or deep green one-piece that can double as a bodysuit with trousers or a skirt.

Key Eco-Friendly Materials

Regenerated Nylon (e.g., Econyl®)

Regenerated nylon is made from waste such as discarded fishing nets, carpet offcuts, and industrial plastic. Through a chemical recycling process, it is transformed back into a nylon polymer that can be spun into new yarn.

• Delivers the same performance and feel as conventional nylon.

• Offers strong stretch recovery and shape retention.

• Helps reduce dependence on virgin fossil fuels and keeps waste out of the environment.

GRS-Certified Recycled Polyester

Recycled polyester is produced from post-consumer plastic bottles and other discarded plastics. When it carries certifications such as the Global Recycled Standard (GRS), it provides additional assurance that both material sourcing and processing follow clear criteria.

• Ideal for printed designs and quick-drying styles.

• Reuses plastic that might otherwise end up in landfills or oceans.

• Often combined with elastane to achieve the desired level of stretch.

Bio-Based and Natural-Fibre Options

Some brands incorporate bio-based materials or natural fibers into swimwear and accessories, especially for linings or wetsuit alternatives.

• Plant-based rubbers like Yulex® can replace traditional petroleum-based neoprene in some applications.

• Cellulosic fibers such as TENCEL™ lyocell may be used for linings or cover-ups, offering softness and improved breathability.

• Carefully engineered bio-based polymers can reduce long-term plastic persistence while still providing necessary performance.

Top Sustainable Swimwear Brands to Know

The list below highlights brands that combine design, performance, and credible sustainability efforts. Always verify the latest details on a brand’s official website, as collections, materials, and certifications may evolve over time.

Global Leaders

Summersalt

• Uses high percentages of recycled polyamide in many styles.

• Offers inclusive sizing backed by extensive fit testing.

• Known for bold colours and travel-friendly designs.

Andie Swim

• Focuses on classic, streamlined silhouettes in recycled fabrics.

• Emphasizes comfort and movement for swimming and beach activities.

• Provides fit guides and customer reviews to simplify online selection.

Reformation

• Uses a mix of regenerated nylon, recycled polyamide, and innovative low-impact fabrics.

• Experiments with biodegradable and lower-impact materials in select collections.

• Runs take-back and recycling initiatives to extend product lifecycles.

Patagonia

• Early adopter of recycled fibers and bluesign®-approved fabrics.

• Publishes detailed information on supply chains and factory partners.

• Supports environmental organisations through long-standing giving programs.

Innovative Newcomers

Abysse

• Surf and dive-inspired silhouettes in recycled nylon and carefully selected dyes.

• Designed for active water sports while maintaining a fashion-forward look.

Dippin’ Daisy’s

• Accessible price point with a wide range of prints and fits.

• Uses recycled and plant-based fibers in many collections.

Berlook

• Combines upcycled plastics and organic fibers in soft, comfortable fabrics.

• Ships in thoughtfully designed, lower-impact packaging.

Lilja the Label

• Scandinavian aesthetic with minimalist designs and recycled materials.

• Publishes transparent information on production and factories.

Wolvethreads

• Uses regenerated nylon and supports local manufacturing partners.

• Shares regular sustainability updates and impact goals, encouraging accountability and progress tracking.

European Standouts

Stay Wild Swim

• Based in London, using Econyl® and other recycled materials.

• Produces locally to reduce transport emissions and maintain close oversight of production.

Talia Collins

• Luxury swimwear made with recycled polyamide and refined cuts.

• Runs a recycling initiative for worn-out swimwear.

Peony

• Known for soft prints and feminine detailing on eco-conscious fabrics.

• Combines recycled fibers with plant-based or certified materials where possible.

Vitamin A

• Long-standing focus on sustainable swimwear using recycled and organic fibers.

• Offers a wide range of prints and silhouettes suited to many body types.

How to Choose Sustainable Swimwear for Travel

When you are packing for a trip, every item has to earn its place in your suitcase. The most practical sustainable swimwear pieces combine performance, versatility, and durability.

1. Fit and Comfort

A sustainable swimsuit is only truly “sustainable” if you love wearing it. Comfort, confidence, and reliable support are just as important as the fabric composition.

• Look for wide size ranges, including extended sizes and different torso lengths.

• Choose pieces with adjustable straps, ties, or bands for a customizable fit.

• Pay attention to lining and bust support if you plan to be active in the water.

From a manufacturing perspective, stretch performance typically depends on elastane content and fabric construction. Fabrics with moderate elastane percentages can balance comfort, shape retention, and longevity more effectively than ultra-high-stretch blends that may degrade faster over time.

2. Durability and Care

Material Longevity

High-quality recycled nylons and polyamides are engineered to withstand chlorine, UV exposure, and repeated stretching. When combined with good construction—reinforced seams, secure stitching, and quality hardware—these fabrics can outlast cheaper alternatives.

• Regenerated nylon maintains its structure over many wears and washes.

• Denser knit structures can reduce snagging and pilling.

• Proper fit helps prevent stress on seams and fabric, further extending lifespan.

Care Practices That Extend Lifespan

Simple care habits make a noticeable difference:

• Rinse in cool freshwater immediately after exposure to salt, chlorine, or sunscreen.

• Hand-wash with mild detergent or use a delicate cycle in a microfiber-catching wash bag.

• Air dry flat in the shade; avoid radiators and tumble dryers.

• Do not wring or twist the fabric, as it can damage the fibers and elastane.

These steps help preserve elasticity, colour, and fabric integrity—meaning you can enjoy your swimsuit for many seasons rather than just one.

3. Versatility for Travellers

Versatile design is a major advantage of sustainable swimwear. Thoughtful silhouettes and colour choices let one piece serve multiple purposes.

• Wear a one-piece as a bodysuit with trousers, linen shorts, or a skirt.

• Combine bikini tops with high-waisted shorts for casual daywear.

• Choose colours and prints that coordinate with your existing travel wardrobe.

For carry-on-only travel, select a small capsule: perhaps one high-performance suit for water sports and one versatile piece that transitions easily from beach to brunch.

The Future of Sustainable Swimwear

New Materials and Technologies

Material science and manufacturing innovation are rapidly reshaping the swimwear industry. Brands are exploring new ways to reduce impact without sacrificing function.

Circular Fashion and Take-Back Programs

In a circular fashion model, swimwear is designed from the outset with its end-of-life in mind. Instead of a linear “take-make-waste” system, brands work toward loops where products are repaired, resold, recycled, or upcycled.

• Take-back schemes allow customers to return worn-out suits for responsible recycling.

• Some companies partner with research institutions to chemically recycle blended fibers.

• Upcycling initiatives transform offcuts and excess stock into new products.

The Traveller’s Role

As a traveler and consumer, you help shape the future of sustainable swimwear through your purchasing decisions and everyday habits.

• Prioritise brands that publish clear material and factory information.

• Choose fewer, better pieces instead of frequent impulse purchases.

• Participate in repair, resale, and recycling programs when available.

• Share responsible brands and tips with your community, online or offline.

Every conscious decision—whether it is choosing regenerated nylon over virgin synthetics or caring properly for the pieces you already own—helps move the industry toward a more sustainable, circular future.

For brands, buyers, and professionals looking beyond consumer-level guidance, a deeper understanding of sourcing, pricing structures, regulatory compliance, and supplier selection is essential. If you are evaluating sustainable swimwear from a business or manufacturing perspective, The Ultimate B2B Guide to Sustainable Swimwear: Materials, Costs, Compliance & Suppliers provides a comprehensive, end-to-end framework.

FAQ: Sustainable Swimwear

What makes swimwear “sustainable”?

Swimwear is generally considered sustainable when it combines lower-impact materials with responsible production. This usually means using recycled or bio-based fibers, carefully controlled dyeing and finishing processes, fair and safe working conditions, and designs that maximise durability and wearability.

Are sustainable fabrics as durable as regular ones?

Yes. High-quality recycled nylons and polyesters are engineered to deliver performance comparable to virgin fibers. When paired with good construction and proper care, eco-conscious swimwear can be just as durable—or even more durable—than many conventional options.

Is sustainable swimwear always more expensive?

Not always, but it often has a slightly higher upfront price. This usually reflects the cost of certified materials, fair labor, smaller production runs, and better construction. However, when you consider cost-per-wear over multiple seasons, high-quality sustainable swimwear can offer very good value.

Can I use eco swimwear for sports or active travel?

Absolutely. Many sustainable brands design suits specifically for swimming, surfing, paddleboarding, and other beach or pool activities. Look for secure straps, supportive cuts, and fabrics that provide UV and chlorine resistance.

How should I care for sustainable swimwear?

Rinse your swimwear in cool water after each use, wash gently with mild detergent, avoid harsh chemicals or bleach, and air dry away from direct heat and strong sunlight. Washing in a microfiber-catching bag and avoiding tumble dryers can help protect both the fabric and the environment.

Where can I buy stylish sustainable swimwear?

You can find sustainable swimwear directly from brand websites, selected multi-brand retailers, and specialty eco-fashion platforms. When you shop, look for clear information about fabric composition, certifications, and manufacturing practices, rather than relying solely on broad “eco” or “green” claims.

Summary: By choosing stylish sustainable swimwear—made from thoughtfully selected materials, with transparent and ethical production and designed for long-term wear—you support healthier oceans, fairer working conditions, and a more circular fashion system, all while enjoying pieces that perform beautifully on every trip.