One Piece n°3 - Pointed Blue

$59.00 $116.00


A little new! The asymmetrical v-neckline and back are exquisite.

A bit retro. Be careful, you will make people jealous on the beach with this one and don't forget that it is produced in small series.

Sharp Blue? Yes it is an exquisite blue, but which takes its name above all from the small traditional Toulonnais fishing boat which is generally blue.

The cut

  • A sublime neckline! Plunging but not too much.
  • Straps adjustable by a system of Italian knots.
  • No iron or plastic (avoid micro-waste) to adjust the straps but knots. The bows are small and comfortable to wear. On the adjustment side, the iron eyelets slide very badly on jersey materials and tend to loosen the straps too quickly; on the contrary, the knots do not loosen when you are in motion.

All our models have been tested by excellent swimmers and water sports enthusiasts in the south of France. With it, you will be comfortable swimming and in all circumstances.

Size advice
To choose your one-piece size, refer to your bottom size. For example if you take 36 in panties, take S in one piece. The straps are wide adjustable and will adapt to your top.
This jersey fits normally. If you measure more than 1m70 and you hesitate between two sizes, take the size above.

In case of doubts or questions about the size, do not hesitate to write to us at

Our models
Laetitia is 1m76 tall, has a B cup and wears an S (36 below)
Héloïse is 1m62 tall, has a D cup and wears an S (36 down)
Carmen is 1m85 tall, has an A cup and wears an S (36 down)
Sigrid is 1m65 tall, has a D cup and wears an M (38 down)


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.

78% Recycled Polyamide. 22% Elastane.
Weight: 190gr.
UPF 50 (sun protection).
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 your swimsuit. You can wash it in the washing machine at the end of your vacation, on a delicate cycle (max. 30 degrees), with a non-detergent detergent, without spinning or drying cycle.

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

Customer Reviews

Based on 10 reviews
Emilie Marie

C’est mon deuxième maillot de bain de la marque. Le premier je l’ai découvert en dépôt vente neuf. Ils taillent parfaitement bien et font une silhouette mortelle.

Hélène Morisot
Impec !

Super maillot, bien coupé, même pour les morphologies rondes. Bravo au styliste.

Cécile Cristofari
Très joli maillot, confortable et pratique pour nager

Ce maillot tient très bien, la couleur est jolie (j'attends juste de voir si elle tiendra dans le temps) et la coupe extrêmement agréable, on se sent très à l'aise pour nager et plonger.

Parfait !

Très joli maillot de bain, bleu très beau, bien taillé ! Je ne suis pas déçue

Emmanuelle Pichon
Bien dans mon maillot

J'ai acheté le une pièce 3.0 séduite à la fois par la coupe et la couleur du maillot tout autant que par le discours de la marque. Je n'ai pas été déçue. Packaging top (avec la crème solaire Biotherm que j'utilise par ailleurs) et maillot exactement conforme à mes souhaits: Bien coupé, agréable à porter, il est joli, sexy, pratique et il sèche hyper vite. Moi qui suis très exigente sur les maillots de bain (j'ai essayé beaucoup de marques tendances ces dernières années), je dis un grand bravo à l'équipe de Posidonie et vivement l'année prochaine pour des bikinis colorés!!!