Technical Details

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

Optimal comfort: a blend of pure cotton and elastane for exceptional lightness and softness.

Extensibility: fluid fabric, limits creasing.

Features
  • Straight fit, ideal for everyday wear
  • Crew neckline to protect the décolleté
  • Long sleeves without thumbholes
  • Slightly longer back hem
  • Weight (size M): 167 g
  • SKU : 101130-BOCEA
Composition

  • 94% cotton, 6% elastane.
Traceability and manufacturing
Design & Product Development: France
Dyeing / Printing: France
Weaving / Knitting: France
Manufacturing (Sewing/Assembly): France
UV and Quality Testing: France
Logistics & Shipping / Customer Service: France
Washing and care instructions
Machine wash cold inside out
Do not bleach
Do not tumble dry
Cool 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.

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.

Frequently Asked Questions

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.

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.

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.

For which activities is this product designed?

This UPF 50+ sun protective product is designed for all your daily activities, combining sun protection and comfort in any situation.

Whether you’re traveling, exploring the city, taking a forest walk, going for a bike ride, or gardening, it provides optimal defense against the sun’s rays while ensuring you have the freedom of movement you need. Versatile and lightweight, it’s perfect for effortlessly accompanying your downtime and outdoor pursuits.

  • 5 stars: 4 (80%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 1 (20%)
Some of the reviews shown are from related products the merchant grouped with this one.
C
Catherine.A
Grande déception pour un tee-shirt très mal fini

Grande déception pour un tee-shirt très mal fini le plus cher de la collection et pourtant fabriqué en France…

Bonjour,

Merci pour votre avis et nous sommes sincèrement navrés d'apprendre que vous êtes déçue de la finition du t-shirt anti-UV La Rochelle, d'autant plus qu'il s'agit d'un de nos articles fabriqués en France.

Nous vous invitons à nous contacter notre service client à l'adresse suivante afin que nous puissions trouver ensemble une solution adaptée à votre situation : bonjour@ker-sun.com

Bien cordialement,
L'équipe KER SUN

I
Isabelle E.
Un bon classique

Très belle matière, agréable et douce, un peu chaude cependant pour certains usages. Belle allure. Attention taille grand le S correspond au M d'autres modèles (1m65, 50kg)

N
Nathalie
superbe

J'avais déjà le tee-shirt fines rayures. Et ce tee-shirt marine est très beau, pas tout à fait uni.

L
Loui f.
yay ! Made in La Rochelle !

The product is well made. I prefer the fabric to other shirts that I have bought from Ker Sun. I especially love that it is made in France and I bought it because it was made here and I wanted to be supportive of this new factory.

Hello Sir,
Thank you so much for your wonderful message!

We’re truly happy to read your enthusiasm about our La Rochelle UV-protective T-shirt. Knowing that you chose it specifically because it is made in France, and to support this new factory, means a great deal to us.

We put a lot of care into the development of this model, from the fabric selection to the manufacturing process. This French production is an important step for Ker Sun, allowing us to combine high UV protection standards with local expertise and responsible production.

It’s also very valuable to hear that you prefer this fabric compared to other shirts you’ve purchased from us. Your feedback helps us continue improving our collections.

Thank you again for your trust and support.

Warm regards.

N
Nathalie
Bravo pour le made in France

Je suis ravie de porter du made in France. Magnifique tee-shirt. Belle matière et belle coupe ! Il taille un peu plus grand que vos autres articles

Bonjour Madame,

Un grand merci pour votre message et votre enthousiasme. Nous sommes ravis que le T-shirt anti-UV La Rochelle vous plaise, tant pour sa matière que pour sa coupe. Votre satisfaction est une vraie récompense pour nos équipes.

Nous sommes également très touchés par votre sensibilité au savoir-faire français. Ker Sun est en effet une entreprise française, fondée et basée à Annecy, où toute la recherche et le développement de nos vêtements anti-UV sont réalisés : conception des modèles, choix des matières, mise au point des coupes et contrôle des standards techniques. La fabrication est ensuite confiée à des ateliers partenaires spécialisés, sélectionnés pour leur expertise dans les vêtements techniques couvrants et anti-UV, et suivis de près par nos équipes.

Merci aussi pour votre remarque sur la taille. Ce modèle a effectivement une coupe légèrement plus ample que certains de nos autres articles, afin d’offrir un maximum de confort, notamment par temps chaud. Votre retour est très précieux et nous aide à toujours mieux guider nos clients.

Nous vous souhaitons de profiter pleinement de votre T-shirt couvrant anti-UV et restons à votre écoute si besoin.
Bien cordialement.

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.