Whether you’re a seasoned surfer or just starting out, choosing the right swimwear to wear under your wetsuit can make a big difference in your comfort and performance. But you know about the impact of fast fashion on the environment, so you’re looking for sustainable options that minimize your carbon footprint.
In this post, we’ll explore the best sustainable swimwear to wear under a wetsuit, so you can stay comfortable and stylish while riding the waves and protecting the planet. Do follow our swimsuit care tips for best results;) And check out some more sustainable swimwear brands. You’ll also find affordable sustainable swimwear brands!
TL;DR: Your best options hands-down is Patagonia’s Solid Nanogrip Bikini Set! If you want something slightly less expensive, go for Summersalt’s Triangle Bikini Set.
Best Sustainable Swimwear to Wear Under a Wetsuit
When it comes to what to wear under a wetsuit, there are a few factors that can come into play, such as personal preference, weather, ease of movement, and what you plan on doing after your surf session. For you, the options can range from sport-specific apparel and bikinis to even nothing at all! The most important thing is to find what works best for you. Also, if you’re looking for the most sustainable wetsuits, we’ve got you covered.
If you’re new to surfing and unsure of what to wear under your wetsuit, don’t worry! Here are some sustainable swimwear options you can comfortably wear beneath your sustainable wetsuit!
1 // Patagonia Women’s Solid Nanogrip Bikini Top and Bottoms

Women’s Nanogrip Nireta Bikini Top | $75
Why Choose this
It’s a supportive, full-coverage, high-performance bikini top. Has secure straps. Nanogrip lining keeps the fabric snug to your skin in the surf. It’s Patagonia!
Patagonia Solid Nanogrip Bikini Top Review: “Normally, I wear a 1-piece or a tankini swimming in rough water. I was skeptical about this top but wanted to wear sustainable swimwear on a recent trip. And wow! This top was phenomenal. It was the absolute most comfortable swim top–actually, I’m a former hot yoga teacher, and it was the most comfortable, supportive top of any kind I’veever worn. I LOVE it and can’t recommend it highly enough. It also had ample support and coverage (removable pads that look normal and they stay put). Truly a beautiful top and they work well with the slider bottoms.”

Women’s Nanogrip Bikini Bottoms | $75
Why Choose this
These are mid-rise, high-performance swimwear. Blended Nanogrip lining holds snug to skin.
Patagonia Solid Nanogrip Bikini Bottoms Review: “This is my first pair of nanogrip bottoms, and I absolutely love them. I live on the beach, am very active in the water and with small children, and these bottoms are perfect. They dont slide, fall, gather, or move with the waves. Awesome for water sports. I am 55, 145lbs, 34 DD, curvy body type. They seem to run a little small, as I am usually a medium in other Patagonia items, but large fit great. Their benefits far outweigh their issues. The sticky lining from the sanitation sticker did bond to the suit, but came off immediately with rubbing alcohol. I will be purchasing another pair for sure. Thanks Patagonia, for making this Mom a little more comfortable and confident to move on the beach. :)”
2 // Summersalt The Triangle Bikini Top and Bottoms

The Triangle Bikini Top | $60
Why Choose this
This stylish triangle bikini top has removable cups and adjustable straps for that
the perfect, comfortable fit.
Summersalt Triangle Bikini Top Review: “The top is very soft and comfortable. The adjustable straps give me the perfect fit since I sized up for more coverage. The fabric is great quality so I don’t worry about fading or the fabric becoming sheer. I have two other suits from years ago and they’ve held up very well.”
The Lace-Up High Leg High Rise Bikini Bottom | $54
Why Choose this
These bikini bottoms come with a delicate nautical twist, and a vintage-style high waist to allow for maximum comfort and movement.
Summersalt Triangle Bikini Bottom Review: “Very flattering and comfortable swimsuit. Not sheer at all. The high rise bottom lays just right and the waistband is a cute touch.”
Sustainability
Summersalt uses “earth-friendly practices.” They incorporate recycled materials not just into their fabrics, but also in their packaging. Their swimwear is made from a compressive, luxurious fabric that is crafted from post-consumer materials and nylon waste—like old fishing nets. These suits offer UPF 50+ protection, and they can stand up to sand, sweat, and chlorine.
3 // Abysse Maya Coral

Top | $96
Why Choose this
If you’re looking for minimum coverage, then this classic triangle top is perfect. It has adjustable bust cups, and double lined fabric. It dries fast and is UV-protective.
Mardy Bottom – Salt-Rib | $108
Why Choose this
The Mardy brief is a high-waisted bikini bottom, with wide side straps. It is double-lined and UV protective.
Sustainability
The Abysse Maya bikini is made from recycled and regenerated fabric (82% Recycled Nylon and 18% Spandex). It is certified by the Global Recycled Standard and Control Union.
4 // Outerknown Brasilia Bikini Set

Seea Brasilia Bikini Top | $110
Why Choose this
The Brasilia bikini top has a deep plunge v-neck for optimum tanning. It has thick straps and a wide band around the back for extra support.
Seea Brasilia Bikini Bottom | $110
Why Choose this
The Brasilia bottom has a higher cut along with a high waist, providing a classy vintage silhouette.
Sustainability
The Brasilia bikini set is made from 90% recycled polyester and 10% spandex. The fabric can handle UPF 30+ to 50+. Seea provides repairs and recycling for all their suits.
5 // Tropic of C The Blonde Top & Bottom in Admiral

The Blonde Top in Admiral | $100
Why Choose this
The supportive bralette top has thick adjustable straps, with a scoop neckline. The 2-way stretch fabric has a gently brushed finish, and provides UV protection. It is fully self-lined for comfort and the right amount of coverage.
The Blonde Bottom in Admiral | $90
Why Choose this
These high-rise bottoms are fully self-lined and offer classic back coverage. The fabric is super soft and offers UV protection.
Sustainability
This bikini set is made from ECONYL (78% regenerated polyamide, 22% elastane). Tropic of C prioritizes recycled materials and methods that reduce water and energy, and are thus able to decrease their environmental footprint.
6 // Seea Surfwear
If you’re against wearing layers of clothing while surfing, then Seea has some stunning sustainable surf suits – single item swimwear for surfing!
Price: From $155
Sustainability
Seea’s swimwear is made in small batches, and produced locally. They’re designed for female surfers, by female surfers. They use deadstock material and plant-based Yulex, among other materials. Seea is currently working toward developing a new ‘C-Skin’ fabric made of recycled polyamides.
This post was about the best sustainable swimwear to wear under a wetsuit
Finding the best sustainable swimwear to wear under a wetsuit doesn’t have to be a challenge. By choosing eco-friendly options, you can enjoy the benefits of high-quality swimwear while reducing your impact on the environment. Give it a try. Your skin, your wallet, and the planet will thank you!
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NOTE: All brand photographs belong to the respective brands/businesses.
All reviews included in this post are verified reviews taken from the respective brand websites.
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