The Best Sustainable Swimwear Brands

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Sustainable fashion has become a growing trend in recent years. 

One of the most important aspects of sustainable fashion is choosing pieces made from sustainable materials and brands that maintain an ethical production process.

So if you're looking for some new swimwear, check out these sustainable brands we've rounded up below! 

Life is tough. It's hard to find time for ourselves, let alone our planet. But it doesn't have to be that way! Sustainability has never been easier than it is today, and you don't need to sacrifice style (or comfort) to make a difference. 

With these sustainable swimwear brands, your summer will be full of fun while also being good for the environment, which means less guilt when you're on vacation or lounging by the pool all day!

In an age where the environment is constantly attacked by human activity, it's important to make conscious decisions about what we wear and how we live. 

Whether you're looking for a bikini or a swim shirt, there are sustainable options available that will help you feel good in your own skin while doing your part to preserve our natural resources.

It's a known fact that wearing a bathing suit can be tough on your self-esteem, but the good news is there are many sustainable brands out there to choose from. I've compiled a list of my favourite sustainable swimwear companies and what makes them stand out from the rest in this post. 

Many sustainable swimwear brands can be difficult to find. This article will walk you through the best, tried and truly sustainable swimwear brands, so you don't have to worry about finding your perfect fit for this summer! 

Swimming is one of the best water sports out there.  It allows you to get in shape while having fun, and it's great for your mental health. 

However, finding sustainable swimwear can be challenging. We've researched some of the most popular brands on the market and found what we think are the best sustainable swimwear brands out there! 

The sun is shining, and it's time to pack up our winter clothes and put them away for another year. 

But before we do, we need a new bathing suit. It might seem like an easy task, but because there are so many options out there, picking one can feel overwhelming — not everyone knows what makes a good sustainable bathing suit or even how they differ from regular ones (ahem!). So let us help you with that!r

Sustainable swimwear is a growing trend in the fashion industry. With more and more people realising that their purchase impacts the environment, they're looking for sustainable brands to buy from. I've compiled this list of my favourite sustainable swimwear brands to help make your decision easier.

The best sustainable swimwear brands are out there--you have to know where to find them! Here's a handy guide with some of our favourites, so you don't waste time shopping around for what's good for both you and the planet.

What Is Sustainable Swimwear, And Why Should I Buy It?

Sustainable swimwear is one of the most searched for fashion terms in the world right now, and it's no surprise – swimwear is a must-have for summer. Still, your average bikini is also one of the worst offenders when it comes to chemical pollution.

Most swimwear you’ll find on the high street is crafted from synthetic fibres made from petrochemicals. This means the carbon footprint of a swimsuit or pair of swim shorts is sizable.

"Drilling for petrochemicals causes terrible environmental pollution," says Jo Godden, Founder of sustainable swimwear label RubyMoon. 

"In addition, most regular swimwear is manufactured in areas of the world where modern slavery is rife and where there are no environmental controls, meaning that poisonous dyestuffs are often poured into local water supplies."

So what is sustainable swimwear, and how is it different to the swimsuits, trunks and bikinis you'll find on the high street?

1. What is sustainable swimwear?

Sustainable swimwear, unlike regular swimwear, is made using low-impact materials by people paid fair wages in safe conditions. 

It’s often crafted from recycled fibres, employing circular or zero waste processes and many sustainable swimwear brands work hard to give back to charities and local communities.

Riz Boardshorts, for example, crafts boardshorts from recycled and recyclable materials, blending classic tailoring with fresh, modern design and earth-friendly inks.

The brand has also pioneered its own recycling programme, offering to recycle old Riz trunks to discount your new pair.

Aima Dora is a sustainable swimwear brand based on an island in the Indian Ocean. “To be a sustainable brand means caring about our world – nature and people.” says the brand’s Founder, Alma Stanonik. 

“We create and produce swimwear with that in mind and limit the negative impact on the environment as much as possible.

By living on an island, we can see daily the responsibility we have to nature first hand.

2. What is unsustainable swimwear?

Often, unless garment labels show clear symbols, certifications and explanations, it can be hard to tell what’s sustainable and what isn’t.

Especially when greenwashing is so prevalent in today’s fashion industry.

It’s always vital to check the care label of your swimwear to see what it’s made from and to look for those certifications. 

Aima Dora ensures that fabrics, lining, zippers and labels all meet sustainability standards. Still, other brands might not signpost this information – which probably means a garment isn't truly or fully sustainable.

Alma at Aima Dora suggests looking at the care label for where the swimwear was made and from what materials and having a quick look on your phone to search the brand you're shopping with.

Then, look for the brand's values and its commitment to nature and people.

Chances are, if your bikini was made in Bangladesh, is made from 85% polyester and 15% elastane and costs $1, it's not an authentic piece of sustainable swimwear.

3. How can buying sustainable swimwear help people and the planet?

Plenty of brands work directly with charities or create their own foundations in order to protect people and the planet.

So by shopping for sustainable swimwear, you not only contribute to circular design processes you also directly protect the people making your clothes.

Aima Dora is proud to have its factories audited to set standards for safe working environments.

The brand also supports the Sekool Association in Madagascar – a non-profit providing schooling for children.

"We also work with organisations to recycle the materials we don't use during the production process. The waste is then transformed into pillows, rugs and fabric toys all intended for local communities to use." says the founder.

Sustainable swimwear brand Sloppy Tunas creates design-led swimwear from ocean waste, but it also promotes and operates beach clean-ups across Spain and the Balearic Islands.

In addition, the label works directly with Mediterranean fishers to collect the plastic waste used to make its products, giving local economies a boost and keeping oceans clean.

RubyMoon operates a members service designed To create a more affordable way of shopping sustainably.

Good news for those who cite cost as one of the main barriers to shopping for sustainable fashion.

"We know our pieces may cost more than fast fashion alternatives, so we are working on a model that incorporates a 'piggy bank' service. 

The aim of this service is for customers to pay a small monthly fee which allows them to buy active and swimwear throughout the year, including monthly updates of where their money is going, which women entrepreneurs of the month have benefited." says Founder Jo Godden.

"Our membership service will also include access to community events: including women's sporting events; full moon swims, women in business meets and lots more. 

This will also include exclusive access to our sustainable and ethical collaborations, vouchers for yoga studios, exercise classes, ethical skincare and treatments. 

We found our customers really value a sense of community, so our main focus is bringing that aspect and making great products affordable to all."

Top Eco Swimwear Brands

1. Vanessa Sposi

Vanessa Sposi is a fairly new sustainable swimwear brand that was established just last year. The collections are all ethically made, eco-conscious and infused with antioxidants and definitely do not cut any corners when it comes to style. 

Designed in Paris, woven in Italy, and made in Portugal, each piece is created to be worn for years to come.

"I believe in a sustainable approach, intending to provide modern classics – pieces that stand the test of time, pieces that collect summers," the designer said.

2. Lula Ru

Luxury swimwear brand Lula Ru takes inspiration from the classic styles of the 1950s to create environmentally-conscious collections that are timeless. 

All Lula Ru fabric is eco-sensitive and sourced from Eurojersey. This company follows every stage of the fabric production cycle in order to reduce waste and water, energy, and chemical usage. The brand is perfect for summer days spent in the park, garden or beach.

3. Faithfull the Brand

Based in Indonesia, every piece from Faithfull is hand-dyed and made by local artisans.

The brand evokes the spirit of travel and takes inspiration from worldwide during the two founder's travels, Sarah-Jane Abrahams and Helle Them-Enger.

"It is important to us that we know how our products are made and who is making them. We want to keep a personal connection with every one of our employees to ensure they are well taken care of," they previously said.

4. Matteau

Matteau is a brand that truly understands that each body is different. 

That's why sisters-turned-founders Ilona Hamer and Peta Heinsen fit their swimwear on friends and family to ensure they all cater and empower their customers in the process. 

It's no wonder that some of the most stylish women in fashion, including Jeanne Damas and Rosie Huntington-Whiteley, are fans of the brand. 

Matteau is always working on evolving its business to be the greenest it can be, such as offsetting carbon emissions and tracing its materials back to the source.

5. Rixo

Cult London label Rixo, which is known for its vintage-inspired prints and silhouettes, moved into swimwear this year, releasing a collection of beautiful bikinis and one-pieces that are sure to enhance your holiday wardrobe. 

The designs have been created with Q-NOVA, a fibre that is made from petroleum-based waste materials.

6. Peony

Australian swimwear label Peony ensures all processes and chemicals used are ecologically safe, and it uses recycled polyester and specially developed lining to help reduce waste. 

The brand says its designs are “the first bloom of peony flowers, which signal the beginning of summer” and is recognised for its classic shapes and soft colour palettes to create sustainable pieces that are durable and strong.

7. Ernest Leoty

Ernest Leoty recently launched its new swimwear collection, which boasts the same comfort and flattering shapes that the brand is loved for. 

The high-performance fabrics are made with considered textiles to reduce their environmental impact, such as Q-NOVA®, an environmentally sustainable nylon fibre from recycled raw materials that aims to reduce CO2 emissions, consume less water and use renewable energy.

8. Skin

New-York based Skin creates the most flattering and elegant everyday basics, using natural materials and organic cotton. 

We love the brand's clever use of reversible designs and multiway straps to ensure you're not only shopping sustainably but getting the most out of your purchases.

9. Hunza G

Hunza G’s production process begins and ends locally in the UK to create its signature crinkle swimwear.

The brand also produces small run-off quantities of headbands and scrunchies made from excess fabric to reduce wastage. 

Even its poly bags are biodegradable, recycled and recyclable – constructed with post-consumer plastic.

As well as using the right materials, Hunza G prioritises community by donating portions of its profits to charities like Street Smart UK.

10. Medina

Medina creates its swimwear using fabrics made from regenerated nylon, created from waste plastics found in global waterways.

The high-quality material is UV-proof, as well as sun cream-, oil- and chlorine-resistant. 

Founder Lou Medina aims to use her swimwear brand as a platform that will support and promote a different non-profit organisation or project that is currently protecting and helping to clean the ocean each season.

11. Casa Raki

Casa Raki is inspired by founder Josefina’s childhood, which was spent on the Uruguayan coast.

The chic collection features flattering cuts and tropical colours, all created from Econyl. 

Everything is designed in London, then made at a women-owned and operated factory in Portugal, which is also a member of the Ethical Fashion Forum.

12. Davy J

The Waste Collection is crafted from 100 per cent regenerated nylon from fishing nets and features both one-pieces and separates designed to be worn throughout the seasons. 

An average of 640,000 tons of fishing nets are left in our oceans every year, and for every ton of waste collected, there's enough nylon regenerated to create more than 10,000 swimsuits. 

Davy J is a must-know label if you're a fan of water sports such as cold water swimming, as every piece gives the right support and boosts confidence.

13. Ayla

Ayla uses the right materials and keeps in mind the garments' whole life cycle by informing the customer on how to take care of them in the best way (you can read up here).

14. Frankies Bikinis

As well as its sustainable swimwear, Los Angeles-based brand Frankies Bikinis has launched a range of sustainable cover-ups with halter dresses and sets that are eco-friendly - made with 100 per cent viscose from natural sources of wood pulp.

15. Paper London

Each piece of Paper London's sustainable swimwear range is made from recycled fishing nets and production waste that's found floating in our oceans. 

With eight million tonnes of plastic entering our oceans, brands must recycle plastics to save the millions of marine animals that are entangled per year.

By turning it into something functional, it helps to clean up the oceans.

16. Tide + Seek

Tide + Seek wants to help make a difference to reduce the number of plastic bottles that go into landfills every year.

To attempt to offset the damage, Tide + Seek recycles plastic bottles to create its swimwear. 

Using Repreve, a polyester fibre made of 100 per cent recycled plastic, the brand offsets the use of new petroleum, emitting fewer greenhouse gases while conserving water and energy throughout the process.

17. Jade Swim

Jade Swim uses Econyl fabric made from regenerated nylon for the majority of its swim pieces.

The brand incorporates a minimalist aesthetic with innovative silhouettes, which can be worn as swimwear or double up as great layering pieces to wear daily. 

Jade Swim is a completely female-run company, from its owner to its warehouse team, and supporting young women is a huge focus for the brand's charity work.

18. Belize

Belize was founded four years ago by friends Fiona Bansal and Valeska Deutsch, who met working in Stella McCartney’s design studio. 

Fabrication, production and garment care are central concerns for both Bansal and Valeska, who constantly evolve their understanding of sustainability and aftercare when creating Belize pieces.

19. Bromelia

Bromelia founder Lauren Quinn aims to support local artists wherever she's living, emphasising underrepresented communities: namely female and LGBTQ+. 

Quinn moved to Brazil six years ago and has since then sought out locals who had a story to tell through patterns, design, art and photography. 

Bromelia swimwear is ethically made through fair paid wages, dignified workspace and respect for its artists in an all-female and LGBTQ+ creative team.

20. La Porte

New York label La Porte uses sustainable fabrics made of 80 per cent recycled Polyamide and 20 per cent Elastolefin, which is a recycled thread.

Its pieces have two-way stretching, which means the suits fit well and also retain their shape.

"As a brand for women by women, we do not bend to the rules of perceived perfection, we do not bow to the toxicity of idealistic beauty we rebel against it," says designer Jo Davenport.

21. Reformation

San Francisco-based label Reformation has lent its signature easy elegance to a brand new swimwear range that uses ocean waste and post-industrial plastic that would have otherwise ended up in a landfill. 

Reformation balances all of the water and waste used to make its pieces and is a 100 per cent carbon neutral company - working towards being Climate Positive by 2025.

22. Bower

Perfect for pool posers, Bower is created specifically for the traveller that enjoys luxury. The fabrics are all created from Econyl, printed by local suppliers and finished in Italy. 

For an added taste of 1970s-inspired luxury, the hardware is made using 24-karat gold-plated metal. In addition, the brand deliberately produces the collections in small quantities in order to minimise waste.

23. Stay Wild Swim

Co-founders Natalie Glaze and Zanna van Dijk grew up diving and snorkelling extensively, which led to a deep connection with the ocean. Because of this, their brand creates practical but stylish pieces that you can really move in.

Everything is designed and made in London using Econyl. However, the pair are mindful of the effect that washing Econyl has on our oceans (releases microplastics), so they also stock Guppy friend bags to encourage their customers to wash their pieces responsibly.

24. Fisch

Fisch's beautiful range of brightly coloured and printed Eighties-inspired styles is well worth checking out if you want to make a statement by the pool. Everything is made from Econyl and woven in a mill in Italy just two hours from their factory. 

This allows Fisch to minimise its carbon footprint. The brand is also a proud partner of Healthy Seas – a team of highly skilled divers that perform the tricky task of removing ghost nets from oceans, which go on to make Fisch’s fabric.

25. Talia Collins

Former stylist Talia Collins’ range is not only designed to look good, but it also does good. "Every brand today should think about how to be more conscious and responsible," Collins explains. 

She mixes her Econyl fabric with Xtra Life Lycra to support and sculpt your body. She has also partnered with Healthy Seas and has a recycling programme: return your worn swimwear, and her company will recycle it to create new pieces.

26. Mara Hoffman

Mara Hoffman is well-known for her sustainable fashion line, and her swimwear is no different. Everything is made from Econyl or Repreve, a polyester created from recycled plastic bottles, transformed into her signature bright-coloured prints.

27. Ohoy Swim

For a touch of Scandi cool, Ohoy Swim is a great go-to.

Their effortlessly simple pieces are all created from Econyl and manufactured in a small, family-run factory in Sri Lanka. 

The team regularly spends time there to ensure that working conditions are as they should be.

So you won't find trendy prints here, just carefully made, timeless styles to last you for years. They also donate a percentage of their sales to Healthy Seas.

28. Natasha Tonic

Designed and made in Los Angeles, Natasha Tonic uses a natural hemp fabric that's UV-resistant and anti-microbial. Being natural, its production has a more minimal impact on the environment than using nylons or polyesters. 

Each piece is hand-painted, so no two are the same. In addition, the brand is very transparent on what goes into its business - a must for a sustainable brand.

29. Rielli

Rielli is a zero-waste swimsuit brand that creates custom-made pieces. It specialises in swimwear made from crinkle-cut ribbed material, which is turned into a bespoke swimsuit for the wearer. 

Founder Arielle Baril says that the brand is focused on designing pieces that "bring out the best in you".

Its production is simple, as it's designed, cut, sewn and distributed from her living room directly to your front door, wrapped up in 100 per cent compostable packaging.

30. Avid Swim

Gionna Nicole launched Avid Swim, intending to create sustainable swimsuits that never sacrifice great style.

The brand only works with factories that use eco-friendly fabrics and low-impact dyes. 

Every suit is designed in-house to keep its carbon footprint to a minimum and comes with a durable, reusable swim bag to store the swimwear in and help keep plastics out of our oceans.

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