6 of our favourite sustainable swimwear brands for this summer

Now that summer is upon us and all things holiday related (for either a staycation or something further afield) are front of mind, fewer purchases are more integral to spruce up our holiday wardrobe than a swimsuit. Traditionally made swimwear is produced using synthetic fibres that like nylon and polyester because they stretch well and dry quickly. Unfortunately, these tend to be some of the most unfriendly materials for the planet as they are non-biodegradable and require a huge amount of water and energy to manufacture.

The good news is there are an ever-growing list of emerging swimwear brands (and brands that make swimwear) that are finding innovative ways of producing stunning, stylish pieces that are kinder to the planet.

We’ve selected 6 of our favourites!  

“The aim is to design and manufacture our garments with greater care, to reduce our impact, and generate awareness.”

Mara Hoffman launched her womenswear brand in 2000 and 15 years later committed themselves to becoming a more sustainable brand. Across their lines the brand use natural, recycled and organic fibres and 100% of their swimwear is produced using recycled nylon or recycled polyester.

Since 2017, through Mara Hoffman’s use of ECONYL (regenerated nylon fibre made from post-consumer waste), 17,767 lbs of waste have been diverted from going into landfill including 4,442 lbs of fishing nets.

Sydney based womenswear brand Bondi Born is world renowned for their sleek swimwear silhouettes and the use of technically advanced and earth friendly fabrics.

Their mission is to” to empower and inspire the summer style of women all over the world, while never compromising on quality, people or planet.”

Bondi Born are one of the few companies in Australia who is a Certified B Corp, meaning they are officially credited as a company that operates under the highest standards of social and environmental practices for the benefit of people and the planet. Their sustainable initiatives include sourcing the highest quality, sustainably certified fabrics and minimising fabric wastage by buying their fabrics to order and repurposing dead stock fabrics.  

Lauunched in 2017 Fisch were pioneers in the eco-swimwear world as they were one of the first brands to use ECONYL. The driving force behind the brand was to “create statement swimwear with a superior fit and timeless design that helped to clean waste from the ocean”.

Their entire swimwear range uses ECONYL and their fabric mill is located just two hours away from where their factory produces their swimwear, allowing Fisch to further reduce their carbon footprint. 

Australian based swimwear and resort wear Peony is named after the bloom that signals the beginning of summer.

With sustainability central to theyr brand DNA, their mission is to “create consciously, engage in ongoing reflection and continually drive progress forward towards sustainability, circularity, inclusivity and transparency.”

Since 2019, all of the fabrics used to create their swimwear are made from recycled materials which ECONYL and REPREVE – a fabric developed exclusively in-house and made from 100% recycled bottles. To date, the use of recycled swimwear fabrics has diverted approximately 8,00 lbs of consumer waste from landfills.

Danish womenswear brand GANNI have made a significant commitment both to upcycling old stock and increasing the share of recycled fibres used in their collections. This includes their swimwear collections which are made from 100% regenerated nylon yarn.


A favourite among celebrities including Gwyneth Paltrow and Lupita Nyong’, Marysia is best known for their signature scallop edged swimwear and premium aesthetic.

This year, after 12 months or research and product testing, they launched SWIMCLEAN – their first ever collection made from 100% recycled materials. The fabric is composed of recycled polyamide yarns and is produced through a mechanical rather than a chemical process, which uses less water is kinder to the environment.  This is the only recycled yarn available on the market today.

“As a lifelong lover of the ocean, I recognize all of the ways that we are depleting our natural resources and want to do my small part by reducing waste” – Marysia Dobrzanska Reeves

The brand are working towards making all of their collections sustainable by 2022.

About the Author

Kim Matrljan

Kim Matrljan

Founder of GAIA. After working in digital marketing for brands like Vivienne Westwood, Selfridges, COS and Rolex, I realised the fashion industry needed change and I wanted to be part of it.



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