TOP n°3 - Collab' x Monday in the Sun

$56.00 USD $83.00

4 in stock

Our flagship piece among the tops. Certainly the most technical to design.

The cut : 

  • Removable foams.
  • Extra soft lining.
  • Adjustable back.
  • Adjustable straps that can be fastened in 3 ways by 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 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 bows do not loosen when you are in motion.

Ideal for a surfer or stand up paddler where the shoulders and arms are constantly under strain. Its elasticated finish guarantees a perfect fit. No underwire, this top can be worn under a neoprene suit. 

Size advice:
This top runs a little larger than the others. If you hesitate between two sizes, take the size below. Find our equivalences.

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

Our models:
Chloe is 1m80, a C cup and wears a size M.
Sigrid is 1.65m tall and wears a L cup.

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 1 review
Très à l'aise dans mon haut de maillot !

Le haut taille très bien (j'ai pris du S pour un 85B), et une fois les réglages faits au niveau des bretelles, je suis très satisfaite du rendu sur moi. Et surtout : je ne me sens pas limitée dans mes mouvements <3
En plus, les broderies apportent un côté esthétique vraiment chouette. Plus qu'à passer l'épreuve des vagues :)

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