One Piece n°4 - Khaki Green

$120.00 USD


The plunging neckline of the range.

The cut

  • A sublime cleavage! Diving but not too much.
  • A belt ensures a certain amount of support for the larger cups.
  • Adjustable straps by a system of Italian knots. They can be attached in different ways: straight, crossed at the back or behind the neck.
  • No iron or plastic (let's avoid micro-waste) to adjust the straps but knots. The bows are small and pleasant to wear. As far as adjustment is concerned, the iron eyelets slide very poorly on swimwear materials and tend to loosen the straps too quickly; on the contrary, the knots do not loosen when you are moving.
  • The swimming costume is lined with our soft material (and in the same colour as the main fabric, which is also a novelty!)

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 5'7" 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
Chloé is 1m80 tall, wears a C cup and size M (38 in Bottom).
Other body types
arepresented on the 4.0 in other colours.

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 5 reviews

Magnifique maillot de bain avec un beau travail de finition et un tissu ultra doux et agréable !
La couleur est sublime et porté il est absolument incroyable ! Je l'aime tellement !
Envoi ultra rapide et sans chichi.

severine waechter
Maillot de bain kaki

Maillot très bien coupé le tissus est très confortable le haut est décollé et maintient très bien . J’ai été très bien conseillée en boutique et cette marque mérite sa notoriété. Respectueux pour la planète et super confortable un très bon combo ! Merci je suis conquise

Daniela Frison

Une Pièce n°4 - Vert Kaki

Anne Michalski

Magnifique maillot, très bien taillé, les noeuds pour régler le maillot sont très bien faits, agréable à porter bref il est incroyable ! Longuement hésité à l’acheter et je ne regrette pas. En plus c’est un bon geste pour la planète et je sais que c’est un modèle qui se garde toute une vie.

Delphine REHEL
Magnifique et confortable

Ce maillot de bain est magnifique, couleur et forme conformes à l'annonce. Le packaging est simple, économique avec une belle pochette utile et qui sent bon!
Ravie de mon achat! Et pour la planète!