One Piece n°6 - Sunny Sea


1 in stock
The cut 
  • The neckline remains very light on this model. It is suitable for all cup sizes. 
  • The straps are adjustable in the Bottomback with an Italian knot system .
  • No iron or plastic (let's avoid micro-waste) to adjust the straps but knots. The bows are small and pleasant to wear. As for the adjustment, the iron eyelets slide very poorly on the swimming costume materials and tend to loosen the straps too quickly; on the other hand, the bows do not loosen when you are moving.
  • The plunging V-shaped back is reminiscent of the V-shaped neckline in the front, creating a lovely asymmetry.
  • The swimsuit is lined with our softest material.

With this model, you will be at ease in all circumstances: it is sculpting and sublimating! 

Size advice 
To choose your size of One-piece, refer to your size of Bottom. For example, if you are a size 36 in panties, you should choose a size S in One-piece. The straps are adjustable and will fit your top.
This swimming costume fits true to size. If you are over 1m70 and not sure which size to choose, go up a size.

If you have any doubts or questions about the size, please contact us at

Our models 
Laetitia is 1.76m tall, a B cup and wears a size S (36 in Bottom)
Sigrid is 1.65m tall, is a D cup and wears L (40 in Bottom)
Carmen is 1.85m, an A cup and wears a S (36 in Bottom)
Maeva is 1.73m tall, wears an A cup and a S  (36 in Bottom)

Fabric & Care

Posidonia's objective is to use a fabric that contributes to cleaning the oceans and the environment, but also very elegant and comfortable to free women from any constraint of movement. An eco-responsible jersey is also a sustainable jersey, which is why I have chosen the highest range of European fabric made up of waste such as fishing nets and plastic bottles.

82% Recycled Polyamide. 18% Elastane.
Weight: 175gr.
Bi-directional stretch (marries muscles & movements: great sensation)
Label: OEKO-TEX Standard 100.
Italian fabrics.

🌞 UV Protection SPF50


The sea and the salt do not alter your swimsuits if you rinse them with fresh water after each use. Let it dry flat or laid out on its own.

Hand wash only, never machine wash.

The chlorine resistance index of our materials is very good. The colors, however, are more delicate.

Customer Reviews

Based on 10 reviews
Couleur magnifique

Le décolleté dans le dos tombe parfaitement et la couleur est très jolie


Premier maillot de bain chez vous, jai fait mon choix grâce à l'éthique de votre marque. Ce maillot de bain est juste sublime, et en ouvrant le joli paquet recyclé, le filet sentais bon l'été ! J'ai hâte de le porter :) Continuez sur cette voix de l'éthique c'est important, merciiiii !!

Marie Deliaval

Une Pièce 6.0 - Mer Ensoleillée

Caroline Trinel

Une sensation de douceur deuxième peau, et que dire de la couleur <3
Fait avec soin et porté avec fierté !

Superbe !

Taille normale, tissus tellement agréable à porter, finitions superbes.