15 Sustainable Swimwear Brands For Summer 2023
The Good Trade editors endorse products we’ve personally researched, tested, and genuinely love. Learn more about our methodology and business model here.
Shopping for swimwear can feel daunting and, frankly, a bit uncomfortable. From terrible dressing room lighting to trying to find a style we feel confident in…the process leaves a lot to be desired. Add to that the fact that many swimsuits are made from unsustainable materials or with concerning ethics and manufacturing practices. Oof.
Thankfully, there are sustainable swimwear brands out there creating cute and comfortable swimsuits for all shapes and sizes of bodies. Eco-friendly materials derived from recycled plastics not only create comfy, stretchy swimwear but also divert waste from the oceans, promoting a circular fashion loop that’s much better for the planet. These brands prioritize sustainability and ethical manufacturing, and they make shopping online easy and, dare we say, fun. Many of the below brands also include unedited photos, real customer reviews, and wonderful support teams to help you find the perfect style and fit. From mix and match bikinis to one-pieces and bodysuits, you’re sure to find something for your next pool day. 🏖️
Best For | Comfortable fit, long torsos, colorblock swimwear
Price Range | Separates starting at $45, one-pieces starting at $95
Size Range | XS–2X
Using 1.5M measurements from 10,000 women and a patented process, Summersalt makes the perfect fit when it comes to sustainable swimwear. Made with recycled textiles that boast five times the strength and four times the compression of other swimwear, these two- and one-piece suits (including maternity and long torso options!) are fashionable, sustainable, and made-to-last. Ethics is also at the forefront of production at Summersalt, with WRAP & BSCI certified production practices. Oh, and they’re affordable, too—most less than $100. We especially love Summersalt’s unique one-pieces—they provide comfortable coverage and fit while still feeling sexy.
Best For | Wrap and velvet bikinis
Price Range | Separates starting at $70
Size Range | XS–XXL
ALOHAS believes that swimwear should be chic, comfortable, and sustainable. Their gorgeous swimwear line is eco-friendly and ethical, produced on-demand in Spain from quality materials that won’t harm the environment or our bodies. Their production model helps eliminate overstock and waste, so they only make garments that have been ordered. The team practices fair labor practices with their factories in Spain and Portugal, and all their products are cruelty-free.
Best For | Patterned swimsuits
Price Range | Separates starting at $52, one-pieces starting at $128
Size Range | XS–XL
Wolven’s founder Kiran Jade draws from her South Asian family’s background for its gorgeous patterns and textiles. Wolven’s swimwear for example—made up of one-pieces and bikini sets—includes mandalas and henna-inspired designs. Each piece is made from 80+ percent recycled plastic bottles with a bit of spandex for extra stretch, so you can run freely across the shores or cannonball into the pool. The fact that many of Wolven’s suits are reversible is so fun to experiment with. (But heads up: If you need structured support, cups, or additional lining, this might not be the brand for you!) Wolven orders are carbon-neutral, give back to environmental causes, and are sent in either recycled or biodegradable packaging.
Best For | Active and reversible swimwear
Price Range | Separates starting at $59, one-pieces starting at $129
Size Range | XXS–XXL
Patagonia’s passion is equal-parts activewear and ethics, so you can expect high-performance bikinis, rashguards, one-pieces, and boardshorts that are stretchy, secure, and sustainably made from fair trade recycled fabrics. Since 1985, Patagonia has pledged one percent of its sales to the preservation and restoration of the environment, so you can feel good about your purchase—whether you’re planning to catch waves or ZZZs on the beach.
5. Vitamin A
Best For | Mix & match bikinis
Price Range | Separates starting at $85, one-pieces starting at $215
Size Range | XS–XXL
Founded, designed, and produced in California, Vitamin A swimwear is inspired by ‘70s beach glamour. The brand is leading the way with fabrics like EcoLux™, a superfine matte jersey, as well as stretch-ribbed EcoRib®, both of which are made from recycled nylon and plant-based fibers. The prints are created, when possible, with water-reducing digital technology and the packaging boxes are fully recyclable and biodegradable. There are hundreds of options to choose from—and each one is as eye-catching as the next. Our editors have personally tried Vitamin A swimwear and can attest to the flattering fit, quality fabrics, and playful prints that leave us wanting summer to last year-round!
Best For | Gender-neutral & gender-fluid swimwear
Price Range | Separates starting at $49, unisuits starting at $89
Size Range | XS–6X
Don’t let the name fool you, TomboyX was created for “any girl or woman or person” who dresses and expresses themselves the way they please. If you’re looking to break from the itty-bitty bikini mold, the certified B Corp makes gender-neutral tanks, halter tops, and racerbacks that can be paired with shorts of varying lengths—or you can opt for a unisuit altogether. All are quick-drying, equipped with UPF sun protection, and made with OEKO-TEX certified fabrics. (And the brand’s ethics and sustainability are top-notch, too.)
Best For | UK swimwear
Price Range | Separates starting at $42, one-pieces starting at $98
Size Range | XS–XL
For sustainable swimwear designed in the UK, Boden is our go-to. These stunning swimsuits—including tankini tops, one-pieces, and bikinis—are majority made from recycled polyester and plastics. (By 2025, 100 percent of its swimwear textiles will be recycled!) You won’t need to replace your bikini after only one season either; the team promises its suits will last. The 365-day return policy (for exchange or credit) guarantees it. Boden ships globally!
Best For | Fuller chest sizes
Price Range | Separates starting at $78
Size Range | XS–XXXL
CUUP knows that every body is different and that everybody deserves to wear pieces that fit (see what we did there?). In addition to its game-changing line of bras and undies, CUUP has a sleek swimwear line that fits up to 38H on top and XXXL on bottoms. We adore the sexy silhouettes, rich colors, and varying degrees of coverage for as much or as little skin as you want to show.
Best For | Versatile swim tops
Price Range | Separates starting at $70, one-pieces starting at $150
Size Range | XS–XL
Cosabella has spent the last 40 years perfecting Italian lingerie—and now its collection includes stunning swimwear as well. Using recycled nylons and elastane, the Vita Marina line includes bandeaus, shirred bottoms, and one-pieces in three basic (but naturally rich!) colors. The bandeaus in particular can be worn a number of ways, wrapped around the neck for extra support or tied into a front knot. Sizes go up to 40H for cups and 43.5” for bottoms.
10. Jessica Rey Swimwear
Best For | Swim dresses
Price Range | Separates starting at $52, one-pieces starting at $124
Size Range | XXS–1X
Jessica Rey Swimwear designs swimsuits that are both modest and playful. Using luxe Italian fabrics, made from regenerated polyamide (sourced from rescued fish nets), the designs are then cut and sewn in Los Angeles. Paying living wages in sweatshop-free factories, Jessica Rey is not only dedicated to ethical production and sourcing practices but to respecting its makers as much as it does the consumers. We love this brand’s diverse swimwear options, like tankinis, mommy-and-me sets, and swim dresses!
Best For | A swimsuit you can wear forever
Price Range | $139
Size Range | US 2–14, UK/AUS 6–18
Seven sizes in one? We know, but hear us out! Youswim simply doesn’t do sizes; the brand has four uniquely simple styles instead—the Aplomb, Eva, Poise, and Verve. Find the fit you love most, choose one of the vibrant colors, and pay one price across all pieces. Each sustainable swimsuit is made with European-sourced nylon, woven ethically in England and is certified Plastic Negative; the team is also diligently working on a recycled nylon fabric to use instead to maximize its sustainability.
12. BOLD Swim
Best For | Colorful bikinis
Price Range | Separates starting at $55, one-pieces starting at $145
Size Range | S–XXL
BOLD Swim is precisely what it sounds like: swimwear for the bold, unafraid, and unapologetic woman. With luxury eco-nylon sourced from Brazil, these swimsuits are nontoxic, biodegradable, and UV protected. Moreover, this BIPOC-owned brand is carbon neutral and crafts exceptionally colorful and cute designs, with sizes up to XXL. Heads will turn whether you’re rocking a cut-out one-piece or a pastel bikini.
13. Hackwith Design House
Best For | Tie tops & high-waisted bottoms
Price Range | Separates starting at $58, one-pieces starting at $94
Size Range | XS to +4.5
Hackwith Design House has been a longtime favorite of The Good Trade because of its stunning wardrobe staples and the handmade-to-order quality. The swimwear line, HDH Swim, features more of the brand’s classic and timeless designs. With stunning color palettes and inclusive, well-fitting suits, a piece from this thoughtful swimwear collection is a summer essential.
Best For | Recycled nylon and retro prints
Price Range | Separates starting at $118, one-pieces starting at $248
Size Range | XS–XL
At Galamaar, waste-to-wear is the name of the game. These beautiful suits are made in part using recycled Econyl®, a fabric derived of nylon from trashed fishing nets that account for nearly 10% of ocean pollution. Not only is the material sustainable, but it’s also made to last: following the brand’s care guidelines, your Galamaar suits can last a lifetime. Made in a small, family owned and operated fair-wage manufacturer in LA, you can feel good about this swimwear that is ethically made, eco-friendly, and extremely chic.
Best For | Minimalist swimsuits with a twist
Price Range | Separates starting at $69, one-pieces starting at $99
Size Range | XS–5XL
Londre was born when its co-founders became obsessed with creating the highest quality bodywear with the lowest impact. Now, the brand’s best-selling one-pieces can be worn to the beach as easily as they can be paired with a blazer. But if you’re looking for something more classic (with a twist!), opt for the high-waisted bottoms and asymmetrical tops. We’ve never worn a suit quite like one from Londre—the cut and shape are so unique and we get lots of compliments on these pieces. The New Classic bikini top can be a little confusing to put on (there’s no pesky tags!), but the plunge neckline, thick support band, and stunning ruching are worth a little trial and error. Made in bright colors and patterns, the products are able to withstand all salt, sand, or sweat.