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
  • Classic low waist
  • Lined front for a completely opaque look
  • Fitted cut
  • Quick drying
  • Weight in size M: 45 g
  • SKU : 100660-BBRIS
Composition

  • 85% recycled polyester, 15% elastane.
Traceability and manufacturing
Design & Product Development: France
Dyeing / Printing: China
Weaving / Knitting: China
Garment making: China
UV and Quality Testing: France
Logistics & Dispatch / Customer Service: France

French company Ker Sun oversees every key stage of its production. In Annecy, in the heart of the French Alps, we design our collections, select each fabric, create prototypes, and carry out UV-protection tests as well as quality control. Our team also provides attentive and accessible customer service there. From our logistics hub in Burgundy, in north-eastern France, your orders are carefully prepared and shipped worldwide.

This product is made in China, in the Shenzhen region, a cradle of textile expertise recognised worldwide. Dyeing, weaving, tailoring – every step is carried out locally by our trusted partners, carefully selected for their know-how and the rigour of their production standards. This choice is deliberate: it allows us to combine outstanding quality, durability, and controlled pricing, without ever compromising your health.

For your safety, our UV-protective clothing is classified as Personal Protective Equipment (PPE) by the European Union. As such, it is subject to strict regulatory checks, ensuring reliable and lasting protection, as well as consistent quality.

And because your needs are not all the same, we have also developed a range of garments made in Portugal, using local fabrics that combine European craftsmanship and excellence.

Washing and care instructions
Machine wash at 30°C maximum on reverse side
No bleaching
No machine drying
No ironing
No dry cleaning
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.

Non-high-cut design for enhanced coverage

With its non-high-cut shape, these swim bottoms offer nearly full rear coverage for increased protection.

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 skin type?

Ker Sun’s UV-protective clothing and accessories are designed to provide high-performance protection for all skin types, including the most sensitive.

Certified UPF 50+ and classified as Personal Protective Equipment (PPE) in accordance with current European standards, our products offer the highest level of textile protection against UVA and UVB radiation as defined by regulations.

They help reduce UV exposure during outdoor activities, supporting a safer and more confident experience in the sun.

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.

  • 5 stars: 28 (82%)
  • 4 stars: 2 (6%)
  • 3 stars: 2 (6%)
  • 2 stars: 0 (0%)
  • 1 star: 2 (6%)
Some of the reviews shown are from related products the merchant grouped with this one.
s
sarah n.

taille parfaitement bien.

A
Anonyme
Bas maillot moorea

Un peu déçue de la coupe, mais surtout qu'il soit fabriqué en Chine !!! Je pensais que vous fabriquiez en France ! Pourquoi ce prix alors ?

B
BOSSON
Excellente veste anti UV

Excellente veste anti UV pour la baignade et/ou à porter durant la journée, par grosse chaleur

S
Soizic D.
Parfait

Joli, taille très bien. Je recommande !

K
Kornelia K.
Super

Tolle Qualität

E
Elisabeth P.

Bas de maillot de bain anti-UV - Moorea

M
Muriel S.
Bas de maillot confortable

Ce produit a un beau design, un super confort et une belle coupe.

Bonjour Madame,
Merci pour votre retour enthousiaste !

Nous sommes ravis que le bas de maillot de bain anti-UV Moorea vous ait plu, tant pour son confort que pour sa coupe. Chez Ker Sun, nous avons à cœur de proposer des vêtements de bain anti-UV à la fois protecteurs, couvrants et agréables à porter, et c’est un vrai plaisir de savoir que vous l’avez apprécié.

Au plaisir de vous retrouver bientôt sur notre boutique !

V
Veronique J.
super comfortable !

Très agréable à porter j'adore!

L
LAETITIA Z.
BAs de maillot parfait

Taille adaptée, colori lumineux. Confort. Parfait

Bonjour Madame,

Un grand merci pour ce nouvel avis !

Nous sommes heureux que le bas de maillot Moorea vous ait de nouveau séduite, autant par sa coupe que par son coloris. Ce modèle a été pensé pour allier protection anti-UV, confort et esthétisme, nous sommes ravis qu’il réponde à vos attentes.

Au plaisir de vous accompagner encore cet été !

Chaleureusement,
L’équipe Ker Sun

L
LAETITIA Z.
Tenue parfaite

Taille adaptée, qualité du tissu parfaite.

Bonjour Madame,
Merci pour votre retour !

Nous sommes ravis que le bas de maillot de bain anti-UV Moorea vous convienne parfaitement. Le confort, la coupe et la qualité des matières font partie de nos priorités pour garantir une protection solaire efficace sans compromis sur le style ou la tenue.

Très bonne continuation et à bientôt sur notre site !

Bien à vous,
L’équipe Ker Sun

J
Jehanne M.d.C.
Très bien

Satisfaite de la couleur et de la taille et confiante dans la protection !

Bonjour Madame,

Merci pour votre retour positif ! Nous sommes ravis que la couleur, la taille et la protection anti-UV vous conviennent. Votre confiance nous encourage à continuer à proposer des vêtements couvrants alliant efficacité, confort et style.

Bien cordialement,
L'équipe Ker Sun

A
Annachiara G.
Ottimo slip per l'estate

Ho preso la mutanda in abbinata con la maglietta solare e il tessuto è comodo, si asciuga in poco tempo e tiene fresca la pelle. Colore brillante come in foto, consigliatissimo.

Buongiorno,

Grazie mille per il suo feedback!

Siamo felici che abbia apprezzato la qualità e la praticità dei nostri capi anti-UV: tessuto leggero, asciugatura rapida e comfort anche nei giorni più caldi sono tra le nostre priorità.
Siamo contenti che l'abbinamento con la maglietta solare sia stato un successo!

A presto su Ker Sun.
Cordiali saluti,
Il Team Ker Sun

J
Janet
Super!

Jolie, confortable, efficace, facile à porter

Bonjour Madame,

Merci beaucoup pour votre retour!

Nous sommes ravis que le bas de maillot de bain anti-UV Moorea vous ait pleinement satisfaite. Il a été pensé pour allier esthétique, confort et haute protection solaire, et votre avis nous conforte dans cette approche.

Merci pour votre confiance et à bientôt chez Ker Sun !

Bien cordialement,
L'équipe Ker Sun

Y
Yasemin T.

Bas de maillot de bain anti-UV - Moorea

P
Patricia N.

Maillot de bain très agréable à porter même sous le pantalon de la même marque . Matière très confortable . Je ne pourrai plus me passer des vêtements kEr Sun car je me sens protégée du soleil , surtout en portant la veste et le pantalon KEr Sun. Bravo pour l’innovation des matières ! C’est extraordinaire.

Bonjour Madame,

Merci beaucoup pour votre retour enthousiaste ! Nous sommes ravis que notre maillot de bain ainsi que les autres pièces de la collection vous apportent confort et sérénité face au soleil. La protection anti-UV est au cœur de notre mission, et vos mots nous encouragent à continuer d’innover pour proposer des vêtements toujours plus couvrants, techniques et agréables à porter. Merci pour votre confiance et votre fidélité à Ker Sun !

L'équipe Ker Sun

K
Karin P.
Klasse Sonnenschutz wäsche

Sonnenschutz, Tragequalität und aussehen sind perfekt, bin rundum zufrieden 👍❣️

O
Odile A.
Coupe parfaite, article conforme à la description

J'adore

M
Myriam A.
Bas de maillot de bain anti UV

Très bien, la taille est parfaite grâce au guide des tailles.

L
LOMBREZ N.
Bas de maillot de bain Parfait

Je suis très satisfaite du bas de maillot de bain.

c
catherine L.
Parfait

Juste parfait pour tout..frais et protecteur pour l'été ensoleillé..et très joli..un plus quand on est déjà privé de soleil 🤔

f
françoise M.

Très bien

A
Astrid D.
Schöne Jacke

Sie trägt sich sehr angenehm und sieht gut aus. In der Waschmaschine im Feinwaschprogramm gewaschen. Qualität und Farben wurden nicht beeinträchtigt.

A
Anne-Cécile M.

Très bon produit, de bonne qualité! Et très bon service personnalisé!

L
Laurence B.
Coloris

Rouge foncé un peu triste

T
Thomas M.
Parfait!

Bonne taille, bonne coupe!

m
marie-josé l.
Aucun style . Coupe assez moche

Anti uv j'imagine bien mais franchement aucune recherche de style culotte mémère et plus que basique et qui ne donne pas envie d'être portee

Bonjour Madame,

Merci pour votre avis bien que décevant pour notre équipe.

Sachez que comme indiqué à de nombreux endroits sur le site, nous proposons les retours 100% gratuits afin d'éviter dès déceptions comme la votre. Nous savons qu'un vêtement ne va pas obligatoirement à toutes les morphologies et surtout qu'il ne peut pas plaire à tout le monde. C'est pour cela que nous proposons à chaque client d' essayer le produit chez lui et de le retourner sans frais si ça ne plait pas. Nous offrons l'étiquette retour et nous remboursons intégralement le produit si il a été juste essayé.
A la lecture de votre commentaire, je comprends cependant que vous avez préféré garder ce produit et ne pas utiliser nos retours gratuits.

Concernant cette culotte, c'est une culotte que l'on appelle volontairement 'classique' car l'idée est de proposer ici une culotte basique qui s'associe avec une pièce couvrante: la veste de bain anti-UV ou un t-shirt anti-UV, afin de faire un ensemble protecteur.

Je vous souhaite une belle journée,
Cordialement,
Nicolas de Ker Sun

D
David D.
Bas de maillot de bain taille classique

Ravie par la coupe et la couleur

e
ellen N.
Très bon produit

Confort facilité entretien efficace

H
HELENE D.
Taille très bien

Finitions impeccables, très contente de cet achat

Ker Sun alongside dermatologists and healthcare professionals since 2021

We work with more than 900 dermatologists in France and across Europe to raise awareness about the risks associated with UV exposure and to encourage the adoption of effective photoprotection habits.
Our clothing is designed as UPF 50+ certified Personal Protective Equipment, providing reliable textile protection against ultraviolet radiation.

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.