Top 9 Ethical Swimwear Brands of 2025

Do you know that Mother Earth is dying, and every time you buy fashion from synthetic brands, you’re also contributing to her death? Trust me, ethical swimwear brands are more than just a trend now. It’s our fight against pollution, waste, and exploitation that harm the planet and also us.

What goes on in these brands beyond the fancy swimsuits we see? Are they using eco-friendly fabrics? Do they have sustainable practices? Are their workers paid well? Is the working condition safe? So, for the sake of transparency, sustainability, and social responsibility, here are the top 9 ethical swimwear brands in 2025.

9 Best Ethical Swimwear Brands of 2025

1. Natasha Tonic

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Natasha Tonic is an ethical swimwear brand that creates swimsuits from hemp. Yup, certified organic hemp, with a mix of cotton blend. This brand doesn’t use anything synthetic; instead, it uses GOTS-certified dyes that are safe for the environment.

In return, we get swimsuits that are breathable, plant-based, durable, biodegradable, UV-resistant, and gentle on your skin and the planet. Every suit is locally and ethically produced, meaning they are designed, sewn, and hand-dyed locally in Los Angeles. But it doesn’t stop there; every swimsuit you get from the Coral City collection helps plant corals in Bali through Ocean Gardener.

2. Remnant Bikini

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Each swimsuit made by Remnant Bikini is a mix of style, ethics, and sustainability. So, they create swimsuits that are durable, stylish, flattering, and also kind to the planet. These swimsuits are made from a soft ocean ocean-loving fabric and are resistant to chlorine, UV rays, and sunscreen.

But that’s not the reason why it's on this list of ethical swimwear brands, no. It’s here cos Remnant is also committed to ethical manufacturing. How? Well, it pays all its seamstresses double the minimum wage, uses fabrics that are recycled, plastic-free, toxin-free, and biodegradable. Even down to its packaging, every step is sustainable, home compostable, and still stylish. These lines with their mission that sustainable fashion should be bold, colorful, and empower the body.

3. La Bom Swim

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La Bom Swim is the epitome of what an ethical swimwear brand should include. It doesn’t just celebrate and empower your body, but it also does it in a way that honors the earth. Every swimsuit designed here is made from ECONYL® regenerated nylon and mixed with Lycra so they are stretchy, supportive, comfortable, and durable.

Since it's an ethical swimwear brand, La Bom makes sure every step of their process, from materials to packaging, is sustainable. Their swimsuits are produced in a factory in Spain where all ethical working conditions are ensured. These swimsuits are not those kind of suits you were and forget, no, these are the kind of long-lasting, movement-ready, flattering suits you wear every summer.

4. Talia Collins  

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Talia Collins is that elegant ethical swimwear brand that proves that luxury and sustainability can work hand in hand. This brand chooses quality over quantity and is known for creating timeless swimsuits that are stunning, flattering, and gentle on the planet.

Every swimsuit from Talia Collins is made from ECONYL® fabric and is blended with elastane. This makes them soft to feel and durable against the sun, salt, and chlorine. Since Talia is an ethical swimwear brand, production is done in a family-run Portuguese factory using OEKO-TEX® certified materials. But their ethical impact doesn’t just stop at fabric production, nope. Every swimsuit you buy means you’re helping remove marine dirt through The Healthy Seas Initiative.

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5. Salt Gypsy  

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This Australian swimwear brand is not just for women who love surfing. It’s for women who want functionality, sustainability, confidence, and intentionality in their swimsuits. And since it’s so inclusive, you don’t need to be a surfer to rock these swimsuits; you can be a paddleboarder,  an athlete, or a regular beach girlie like me.

Salt Gypsy has built this ethical swimwear brand that is fully committed to small batch manufacturing and transparency. These swimsuits are made from ECONYL® fabric, so they look good, hug the right curves, and are good for the environment. They mostly produce their suits from their in-house factory, but during the busy seasons, they bring in more skilled women who they all pay fairly. So you see, they create ethical swimwear that is durable, designed with intention, and made for women who love the ocean.

6. Abysse  

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Abysse swimwear doesn’t follow the fast fashion trend of just producing swimsuits. It is a women-owned, family-run ethical swimwear brand that prioritizes sustainability from the sourcing of fabric to the packaging process. Their suits are made from recycled fabrics that are Oeko-Tex certified, functional, flattering, and kind to the environment.

But what truly makes Abysse an ethical swimwear brand is how they treat their workers. The workers are treated with respect, work in safe environments, and are paid fair living wages. So you see, every step of their way from the biodegradable bikini liners made from corn to the algae-ink printed mailers is meant to be sustainable and leave as little impact as possible.

7. Charlee Swim

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This ethical swimwear brand is run by a family and is committed to sustainability and slow fashion. They’re so committed to their values that they only produce three collections every year. And each collection is made intentionally and designed in a way to reduce waste. Their suits are made from ECONYL® and REPREVE® Lycra, so they are bold, soft, and durable.

The suits are hand-sewn in their Noosa studios, and every extra piece is turned into straps or linings to prevent wastage. Then they work with local and New Zealand artists to design prints using a water-free printing method that looks good and is still good for the environment. So, if you want to support the environment and still look good, Charlee Swim is the brand to come to.

8. Stone Fox Swim  

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Stone Fox Swim makes swimsuits that feel like a beautiful second skin you never want to remove. These suits are made from recycled fabrics and are hand-dyed from plants, so they are vibrant without being too much and just perfect for the environment. They are designed with details like plunging cuts to make you look sexy, mysterious, and bold.

Since it's an ethical swimwear brand, Stone Fox Swim produces their suits in a family-run factory built under LEED-certified green building standards. Its sustainability and ethical dedication go beyond their fabric to their workers too. Even their packaging has no plastic, so you don’t have any waste to worry about. 

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9. Maoi Swim  

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Maoi Swim is not just another regular ethical swimwear brand - it’s a community of slow fashion, sisterhood, and positive impact on the planet. Their swimsuits don’t follow any fashion trend. In fact, they are the trend itself. They are versatile, beautiful, flattering, and the type of swimsuits you wear every summer.

The swimsuits are handmade in Bali from luxe recycled Italian fabrics just to reduce wastage that harms the planet. From their biodegradable panty liners to their cassava-based packaging, every process here is done with intentionality. So with Maoi, you’re not just wearing a cool bikini, you’re supporting women, protecting the planet, and joining a community.

Conclusion

Ethical swimwear brands are creating swimsuits that are stylish, flattering, and still sustainable. So, if the only reason you don’t have any of these brands in your summer wardrobe is that they won’t match your style, then you need to think again.  

From the handmade bikinis to the intentional surfers' swimsuits, ethical swimsuits are fun, flattering, and comfortable. If you’re still looking for more products that are sustainable, you can check our guide on sustainable swimwear brands. So, which brand are you adding to your swimwear this year?