Biarritz One Piece
Biarritz One Piece
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Description
Description
The Biarritz One Piece is a sophisticated blend of timeless elegance and modern design, inspired by the iconic beaches of Biarritz.
Double Lined: To avoid any sheerness when wet.
Signature Ring Detail: A distinctive design element, evoking the effortless elegance of the Biarritz coastline.
Elegant Cutouts: Subtle cutouts add a modern twist while enhancing your silhouette.
Rounded Neckline: A flattering neckline that exudes sophistication.
High-Cut Leg: Creates a sleek, lengthening effect for a chic and confident look.
Fabric
Fabric
Crafted from our signature recycled polyamide: 78% recycled nylon and 22% elastane.
- Chlorine resistant
- UV protective fabric
- Excellent coverage
- Bi-elastic
- Pilling resistance
Fit & Sizing
Fit & Sizing
Runs true to size. For more information please visit our size guide In between sizes? We recommend sizing up.
Carlijn is wearing size M.
Amal is wearing size XL.
Care Instructions
Care Instructions
To preserve the quality and longevity of your Billie Swim: Hand wash in cold water, lay flat to dry indoors and away from direct sunlight.
Drop a hint
I feel sexy and sophisticated wearing this one piece. I have the cream color, and it doesn’t see through (maybe because of the double fabric?) even not when it is wet. So if you doubt the colour, no worries!
The shape of the one piece is beautiful. This piece is my fav to feel sophisticated and take a dip in a pool and meet friends.
This one piece feels is amazing! I feel great in it, instant confidence.
Amazing one shoulder fit and definitely recommend the terracotta colour for dark-haired girls
It fits perfect and it's super comfortable. Can't wait for the summer!
This bathing suit is designed very well. It makes me feel very sexy and confident in my own skin. The fabric is like a hug that snatches you in the right places. My new favorite one piece.
















Billie Swim pieces are timless, high quality and designed to last
Billie Swim is a slow fashion brand, our thoughtful designs transcend trends. We focus on creating pieces for endless seasons of beachside elegance.

We only use reycled polyamide
Billie Swim pieces are only made of polyamide from recycled sources. We are proud that we do not use any conventional polyamide in our swimwear collections.
Our swimwear fabric is versatile, hyper-resistant, sleek, elegant, stretchy, soft, and breathable.

We understand science
All materials used are OEKO-TEX® Standard 100 certified. EKO-TEX® Standard 100 is a globally recognized certification that ensures textiles are free from harmful substances.

Billie Swim is produced at a solar powered factory
Billie Swim suits are produced in Indonesia. The factory producing our collection is solar powered.
Fun fact: 90 seconds of sunlight = 2.5 hours of power for sewing machine = 1 Billie swim bikini set.
Let's make waves together
By choosing Billie Swim, you're not just buying swimwear — you're joining a movement towards slow fashion, high quality goods that are designed to last.