The Solaris Collection is now available on Amazon
Solaris

Sunset summer,
forever.

Sustainable swimwear made from biodegradable Brazilian fabric that feels like butter on your skin. Five signature designs, five fruit-inspired colours, XS to XL.

Shop on Amazon Explore the collection
Two women on the rocks wearing Eterno bikinis in Arándano blue and Cereza red Arándano & Cereza
The Solaris Collection

Five designs,
endless summers.

Every piece is cut from Light CO2 fabric and finished by hand, with our signature eterno embroidery on the back. Tap a colour to see it, or open a design for every detail.

The Palette

Named for the fruit
we love most.

Each Solaris colour takes its name from the tropical fruit that inspired it. Every design comes in the full palette, except the Malea.

Size Guide

Find your
perfect fit.

All Solaris pieces come in XS through XL. Tops and bottoms are sold separately so you can mix sizes to suit your body.

  1. BustMeasure around the fullest part of your bust, keeping the tape level across your back.
  2. WaistMeasure around the narrowest part of your natural waist, usually just above your belly button.
  3. HipsStand with feet together and measure around the fullest part of your hips and seat.
SizeBustWaistHips
Adjustable stylesPalila, Diosa bottoms, Dominica and Malea all have ties, so you can fine-tune the fit once they're on.
Mix & matchTops and bottoms are sold separately, so choose your bust size for the top and hip size for the bottom.
Samantha and Shari, the founders of Eterno Swim, in the Eterno shop
Our Story

Two best friends,
one endless summer.

Eterno Swim was born from our shared passion for endless summers and a desire to escape the frosty grip of Canadian winters. It all began in 2018, after a backpacking adventure that cemented an unbreakable friendship.

Every winter since, we've fled Canada to explore the world's tropical beaches. Those sun-drenched days taught us a lot about sustainability, conscious consumption, and how much a great bikini matters.

Eterno is where it all comes together: travel, friendship, beautiful swimwear, and a real commitment to the planet. Every piece tells a story of adventure, ethics, and style.

Samantha & Shari
Founders, Eterno Swim
Mission

Confidence, style & sustainability

We empower people with confidence, style, and a real connection to timeless sustainable fashion. Through innovative design, sustainable practices, and inclusivity, we want to inspire a more conscious way of living, not just sell swimwear.

Vision

Conscious choices, global impact

We want to drive global sustainability through conscious choices, and inspire people and organisations to put high-quality, ethical, sustainable products first, for a brighter future for generations to come.

Eterno friendship. Eterno summer.
Eterno swim.

Back view of the Dominica set in Lychee with gold clasp and embroidered eterno logo
Fabric & Care

Made to last,
made to return.

Solaris is cut from Light CO2, a 6.6 biodegradable nylon developed with Brazilian Amni Soul Eco® technology. It's buttery soft, holds its shape through salt water and sun, and after disposal it decomposes far faster than conventional nylon.

UV 80 protection
Anti-odour protection
Fast drying
OEKO-TEX® Made in Green
Made from clean energy
Amni Soul Eco® biodegradable
PETA-Vegan approved
Hand-finished seams

Caring for your suit

  • Rinse in cold water after use
  • Hand wash cold, mild detergent
  • Don't wring, soak or bleach
  • No tumble dry
  • Dry in shade to keep the colour
  • Don't iron
From the people

Soft like butter.

★★★★★
My new favourite bikini! The material is buttery soft and it can be worn multiple ways, which is my fave. Def worth it!
Alyssa C. · Palila
★★★★★
Obsessed with this suit!!! It fits perfectly and the colour is even better than in the pics. I got so many compliments!
Alanna T. · Leilani
★★★★★
In love with my Eterno bathing suit! Finally a bathing suit that feels good, looks cute and is high quality.
Jasmin G. · Palila
★★★★★
I love this company and what they stand for. Super inclusive sizing, and the fit is flattering for all body shapes!
Julia B. · Leilani
Eterno Swimwear

Now on Amazon

Shop the full Solaris Collection on Amazon, with fast shipping and easy returns handled by Amazon.

Visit our Amazon store
FAQ

Good to
know.

Where can I buy Eterno Swim?

The Solaris Collection is sold exclusively on Amazon. Use any "Shop on Amazon" button on this page to go straight to our listings. We no longer take orders on this website.

How do shipping and returns work?

Amazon handles all orders, so you get Amazon's shipping options, delivery tracking and return policy. You can start a return any time from "Your Orders" in your Amazon account.

Are tops and bottoms sold separately?

Yes. Every bikini top and bottom is listed separately so you can mix sizes and colours. The Malea is a one-piece.

How do I choose my size?

Check our size guide above, which covers bust, waist and hip measurements in inches and centimetres. Tops and bottoms are sold separately, so you can pick a different size for each.

What makes the fabric sustainable?

Our Light CO2 fabric is a 6.6 biodegradable nylon made with Brazilian Amni Soul Eco® technology. It's OEKO-TEX® Made in Green certified, made using clean energy, PETA-Vegan approved, and decomposes far faster than conventional nylon after disposal.

Will the colours fade?

Rinse your suit in cold water after swimming, hand wash with a mild detergent, and dry it in the shade. That keeps Solaris colours bright season after season.

How can I contact you?

Email us at eterno@eternoswim.com or send us a DM on Instagram at @eterno.swim. For help with an order, you can also contact us through Amazon from "Your Orders".