Technical Details

Very high sun protection: fabric certified UPF 50+ against UVA and UVB according to the EN 13758-1 standard.

Ultra-stretchy: stretch technology for exceptional comfort.

High resistance to chlorine and salt water.

Sustainability: recycled polyester.

Features
  • Under-bust elastic for better support
  • Back closure with a tie
  • High collar for maximum protection
  • Chlorine- and saltwater-resistant
  • Allows for breast form insertion
  • Quick-drying
  • Weight in size M: 5.2 oz
Composition

  • 85% recycled polyester, 15% elastane.
Washing and care instructions
Machine wash cold inside out
Do not bleach
Do not tumble dry
Do not iron
Do not dryclean
Spectrophotomètre permettant de mesurer l'efficacité des tissus anti-UV Ker Sun et leur conformité avec la norme européenne EN 13758-1.

Maximum sun protection certified UPF 50+

Our garments offer the highest level of sun protection, certified UPF 50+ under the European standard EN 13758-1. Every fabric, in every color and with each new production run, is rigorously tested to ensure this excellence.

Designed for the most delicate skin, they provide optimal protection against the sun's rays.

Tissu pour maillots de bain anti-UV, UPF 50+

Innovative fabric technology for lasting protection

At Ker Sun, your skin is our top priority. Our expertise in UV protection has enabled us to develop fabrics that mechanically filter UV rays. Through meticulous selection of textile fibers, optimized density, and our advanced weaving techniques, we guarantee UPF 50+ protection, without added sunscreen filters, that lasts throughout the garment’s lifetime, even after countless washes.

Elastic band under the chest for optimal support

This swim top ensures complete coverage and features an under-chest elastic band for added support.

Frequently Asked Questions

For which activities is this product designed?

This UPF 50+ sun protective product delivers maximum sun protection for your water-based activities. Engineered to withstand water exposure while maintaining its UV-blocking properties, it’s the ideal companion for swimming, canoeing, windsurfing, snorkeling, coastal walking, and various other water sports. Combine safety and enjoyment in the sun with this product designed for your aquatic adventures.

Is this product suitable for use at the pool or in the ocean?

Yes. The material of this product has been carefully selected to be resistant to both chlorine and salt water. This means you can enjoy your garment in the pool or at the seaside, without compromising its quality or level of protection.

Can it also be worn outside of the water?

Absolutely. This sun protective garment is not limited to use in the water: it is also suitable for your moments of relaxation at the beach, by the pool or on a boat. However, if you are planning a more intense sporting activity outside of the water, we offer other models specifically designed to meet your needs in terms of sports performance and comfort.

Does the fabric maintain its UPF 50+ protection when wet?

Absolutely. The UPF 50+ certification of this fabric holds even in wet conditions, ensuring your skin remains protected from UV rays, whether the clothing is dry or after extended time in the water.

Does this product dry quickly after swimming?

Yes. The fabric in this product is designed to help water drain quickly, leading to faster drying for improved comfort and a pleasant feel.

How should I care for it to maintain its quality?

Although it is resistant to chlorine and salt water, in order to prolong the durability of this product, we recommend rinsing it with clean water at the end of a day where it has been in contact with salt or chlorinated water.

If you wish to machine wash this product, we recommend that you follow the care instructions specified on this product sheet or on the label of your garment or accessory.

Is this product suitable for my specific condition?

Ker Sun’s UPF 50+ clothing and accessories are specifically designed to deliver optimal sun protection for highly sensitive skin, including individuals requiring extra care due to specific conditions.

We effectively protect:

  • People without any condition who wish to prevent sun-related harm.
  • Those with medical conditions who need rigorous sun protection.

Below are some examples of conditions for which our garments are suitable:

  • Skin cancers: Basal cell carcinoma, squamous cell carcinoma, melanoma
  • Autoimmune diseases: Lupus, scleroderma, dermatomyositis
  • Medical treatments: Chemotherapy, radiotherapy, immunosuppression, photosensitizing treatments
  • Dermatoses and photosensitivity: Actinic keratosis, porokeratosis, vitiligo, eczema, photosensitive dermatoses, chronic actinic heliodermatitis
  • Rare genetic conditions: Erythropoietic protoporphyria, Bloom syndrome, porphyrias, ichthyoses

Our products guarantee UPF 50+ certified UV protection, providing you peace of mind no matter your situation. If you have specific questions, our team is here to assist you.

Does the UPF 50+ protection ever wash out?

The UPF 50+ protection does not wash out.

Our sun protective expertise has allowed us to develop fabrics that filter UV rays mechanically. Thanks to the meticulous choice of textile fibers, their optimized density and our advanced weaving techniques, we guarantee a UPF 50+ protection, without added sunscreens, which persists throughout the life of the product, even after many washes.

To preserve the quality and durability of your product, we recommend that you follow care instructions carefully specified on this product sheet (see above) or on the label.

Do I need to apply sunscreen underneath my UPF 50+ clothing?

With Ker Sun sun protective clothing and accessories, there’s no need to apply sunscreen on covered areas.

However, for full protection, it’s important to apply sunscreen to any exposed skin. We recommend applying sunscreen 30 minutes before sun exposure and reapplying every two hours or after swimming, in accordance with the instructions for the product you’re using.

Which certification or standard does this product meet for sun protection?

This garment is certified UPF 50+, providing you with the highest level of sun protection. Every fabric, regardless of color, undergoes rigorous testing under the European standard EN 13758-1 for each new production run, ensuring maximum, reliable, and safe protection.

What sets a Ker Sun UPF 50+ clothing apart from regular ready-to-wear clothing?

Ker Sun's UPF 50+ clothing does more than dress you: it effectively shields you from sun-related risks. This protection is built on three pillars:

  1. Exceptional sun protection: Our clothes are made from UPF 50+ certified fabrics. This long-lasting protection creates a permanent barrier against UV rays, going far beyond what standard ready-to-wear clothing can offer.
  2. Optimal coverage for reinforced protection: Each Ker Sun piece is thoughtfully designed to protect the most sun-exposed areas (arms, neck, hands, face, chest, legs etc.) while maintaining elegance and everyday ease of use.
  3. Maximum comfort, even in hot weather: Designed with heat in mind, our breathable, lightweight fabrics and airflow-friendly cuts help keep you cool while staying shielded from UV rays.

Conventional ready-to-wear clothing, which isn’t designed for sun protection, consistently lacks these benefits. At Ker Sun, our mission centers on creating garments that truly defend you from the sun, allowing everyone to enjoy outdoor activities with peace of mind.

Customer Reviews

Based on 5 reviews
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A
Anne D.
Belle coupe et efficace

Un peu trop ras du coup pour moi et le nouage sur le dos est chic mais pas nécessaire pour nager. J’ai enlevé les coussinets pas utilisés pour moi. Mais très belle coupe et les bras libre sans manche, c’est tellement agréable

Bonjour Madame,

Un grand merci pour votre retour détaillé sur le haut de maillot de bain anti-UV Malta.

Nous sommes ravis que sa coupe vous ait plu et que le confort sans manches vous apporte plus de liberté de mouvement, c’est exactement ce que nous cherchons à offrir.

Nous prenons également bonne note de vos remarques concernant le col, le nouage : ces retours sont très précieux pour nous aider à améliorer encore nos modèles.

N’hésitez pas à nous recontacter si vous avez besoin de conseils pour un prochain achat !

Très belle journée à vous,
L’équipe Ker Sun

V
Virginie M.
Maillot de bain au top

Très confortable
Doublure

A
Anne-Marie S.
Avis

Déçue de voir des étiquettes Made in China

Bonjour Madame,
Merci pour votre message et pour l’attention portée à l’origine de nos produits.

Ker Sun est une entreprise française, fondée et basée à Annecy, où sont réalisés toute la recherche et le développement de nos collections : conception des modèles, choix des matières, développement des prototypes et contrôle des standards techniques. Nos produits sont certifiés anti-UV UPF50+ selon la norme européenne EN 13758-1, avec des tests réalisés en France. Ce niveau d’exigence garantit une protection solaire efficace, constante et fiable.

Concernant la fabrication, elle est effectivement internationale. Nous produisons en Chine, au Portugal et en Tunisie, selon l’expertise technique requise pour chaque produit. La Chine, en particulier, dispose aujourd’hui d’un savoir-faire textile très avancé, notamment sur les vêtements techniques. Il existe bien sûr des niveaux de qualité très variables, mais chez Ker Sun, nous sélectionnons rigoureusement nos partenaires pour leur capacité à répondre à nos exigences, tant en matière de qualité que de respect des standards sociaux. Nos équipes se rendent régulièrement dans les ateliers pour le vérifier sur place.

Le choix de produire en Chine pour certains produits ne résulte donc pas d’un compromis sur la qualité, mais d’un besoin technique. La réalité du secteur textile est qu’en dehors du luxe, l’industrie européenne a été largement délaissée ces dernières décennies. Les usines françaises de confection de qualité sont rares, surchargées, et peinent à recruter. Il est donc aujourd’hui difficile pour une marque comme la nôtre, même engagée, de relocaliser massivement la production.

Enfin, la question du prix entre aussi en jeu : à qualité égale, un vêtement fabriqué en France coûte en général deux fois plus cher qu’un produit réalisé en Asie. Chez Ker Sun, nous faisons le choix de proposer des produits techniquement performants, accessibles au plus grand nombre, tout en veillant à rémunérer justement l’ensemble de nos partenaires et à garantir des conditions de production responsables.

Pour autant, nous proposons également sur notre site des produits fabriqués en Europe, notamment des chapeaux anti-UV, afin que chacun puisse choisir selon ses préférences.

Nous restons bien entendu disponibles si vous souhaitez échanger davantage sur ce sujet.
Bien cordialement,
L’équipe Ker Sun

Reviews in Other Languages

K
Kelly D.

I’ve used this just once but really love it. I bought an M and usually would be between and S and M. The M fits perfect

Dear Madam,

Thank you so much !

We’re delighted to hear that you love your Malta UV-protective swim top and that the size M fits you perfectly. This top was designed to offer both comfort and UPF50+ sun protection, especially for sensitive skin. We hope it will be a great companion for many sunny days ahead!

Best Regards,
The ker sun team

E
Elisabeth T.
Sehr chices Teil und maximal funktionel

Habe mir den Oberteil für unseren ersten Urlaub im heurigen Jahr gekauft, der uns in das sehr sonnige Ägypten geführt hat. Der Oberteil ist nicht nur sehr sehr chic, sondern hat meine Haut 100% beim Baden im Meer geschützt.

Ker Sun alongside dermatologists and healthcare professionals since 2021

Over 600 dermatologists in France and Europe recommend Ker Sun. Whether through prescriptions, in-office displays, or the distribution of our awareness materials, these experts trust us to protect your skin. As the WHO emphasizes: "Wear protective clothing." With Ker Sun, you’re choosing the option recommended by healthcare professionals.

A brand committed to sun protection

Ker Sun is deeply committed to sun protection.

In partnership with dermatologists, associations, and public health stakeholders, we actively participate in prevention campaigns, financially support initiatives, and create educational materials.

Beyond our clothing, we are wholeheartedly dedicated to an optimistic mission of education and awareness to protect everyone's health, without resorting to alarmism.