Technical Details

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

Breathability: lightweight and breathable fabric.

Cooling properties: soft, lightweight fabric that provides a cool sensation on the skin.

Sustainability: recycled polyester.

Features
  • Close-to-the-neck collar for maximum UPF 50+ protection
  • Discreet and lovely Nuvées logo embroidery
  • Back length (size M): 25.6 in
  • SKU : 100831-RGREN
Composition

  • 34% cotton, 34% viscose, 32% PTT (polytrimethylene terephthalate).
Traceability and manufacturing
Design & Product Development: France
Dyeing / Printing: China
Weaving / Knitting: China
Apparel manufacturing: China
UV and Quality Testing: France
Logistics & Shipping / 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 Shanghai region, a cradle of textile expertise recognized worldwide. Dyeing, weaving, garment manufacturing – every step is carried out locally by our trusted partners, carefully selected for their know-how and the rigor 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 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.

Discreet thumbholes for optimum coverage

This T-shirt provides optimal sun protection with built-in thumbholes to shield your hands whenever you want. Subtle in design, they remain hidden when not in use.

Collar for maximum sun protection

Featuring a close-fitting neckline, this T-shirt maximizes skin coverage and offers enhanced sun protection, perfect for enjoying sunny days to the fullest.

Frequently Asked Questions

For which activities is this product designed?

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

Whether you’re traveling, heading into the city, strolling through the woods, cycling, or gardening, it ensures optimal defense against the sun’s rays while allowing you the freedom of movement you need. Versatile and lightweight, it’s perfect for effortlessly accompanying both your leisure time and outdoor pursuits.

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: 37 (80%)
  • 4 stars: 6 (13%)
  • 3 stars: 2 (4%)
  • 2 stars: 0 (0%)
  • 1 star: 1 (2%)
Some of the reviews shown are from related products the merchant grouped with this one.
J
Judith M.M.

Es sollte noch dünnere und leichtere Shirts geben. Sind in der Sonne sehr warm.

A
Anonyme
Teeshirt

Confort, bien couvrant, pas trop chaud

S
STEFANIA B.

T-shirt anti-UV - Saint-Malo

A
Anonyme
Leger et couvrant

Parfait pour l ete

M
Magalie K.
Excellent confort de protection

Très agréable au contact de la peau. Tissu épais, de qualité robuste et qui laisse à la fois une sensation de légèreté. Couvrant sans être « étouffant » . Son temps de séchage est tout à fait correct.
J’apprécie beaucoup ce modèle que j’ai en 4 coloris! Les couleurs résistent très bien aux lavages successifs. Vêtement qui me rassure :)

M
Magalie K.
Confort et couvrance de grande qualité

Très agréable au contact de la peau. Tissu épais, de qualité robuste et qui laisse à la fois une sensation de légèreté. Couvrant sans être « étouffant » . Son temps de séchage est tout à fait correct.
J’apprécie beaucoup ce modèle que j’ai en 4 coloris! Les couleurs résistent très bien aux lavages successifs.

M
Magalie K.
Excellent confort de protection

Très agréable au contact de la peau. Tissu épais, de qualité robuste et qui laisse à la fois une sensation de légèreté. Couvrant sans être « étouffant » . Son temps de séchage est tout à fait correct.
J’apprécie beaucoup ce modèle que j’ai en 4 coloris! Les couleurs résistent très bien aux lavages successifs.

A
Anonyme
Tolles Shirt zum Radfahren oder für den

Tolles Shirt zum Radfahren oder für den Strand

J
Josef N.
Großartiges Teil!

Super Passform, super Material.

C
Charlotte
Couvrant

T shirt couvrant, le retour sur les mains est parfait, couleur sympa, pris taille L (1m70, 70kg), longueur jusqu’aux fesses, rien ne dépasse !
Seul bémol : matière chaude et non respirante, difficile quand le thermomètre dépasse les 30 degrés

M
Martina B.
Empfehlung

Leichtes angenehm zu tragenes Material, gute Passform, empfehlenswert.

P
Petra
Sehr schönes Shirt und der UV-Schutz wirkt zu 100

Sehr schönes City-taugliches Shirt und der UV-Schutz wirkt zu 100 %.

S
Sandta H.
Tolles Shirt

Mein neues Lieblingsshirt bei allen Aktivitäten draußen! ;)

M
Madina B.
Tes shorts super sympa,

Tes shorts super sympa, je les pris en rouges, rien à redire, super matière, très agréable

C
Christina S.
Perfekt für Gartenarbeit

Weiches Material, Schnitt ist sehr gut, hoch geschnittener Kragen/Ausschnitt schützt gut vor Sonnenbrand am Oberen Rücken. Zusammen mit dem Hut bleibt auch der Nacken geschützt.

C
Catherine.A
Tee-shirt très agréable à porter,couleur sympa et

Tee-shirt très agréable à porter,couleur sympa et petit détail au poignet pour passer le pouce génial pour protéger la main en randonnée.
Je recommande

V
Viktoriia S.
Pas pratique en rando

J’ai pris ce t-shirt pour mes activités dehors pour éviter de mettre la crème solaire tous les 3h. Mais la matière n’est pas adaptée, j’ai transpiré très vite et c’est impossible à sécher après (j’ai du mettre un autre t-shirt, car j’avais froid la nuit, j’ai essayé de sécher le t-shirt toute la nuit - impossible)

I
Isabelle E.
Beau T-shirt pour toutes les activités

Belle matière et couleur lumineuse. Je l'ai choisi pour la couverture des mains pour les promenades à vélo notamment. J'ai choisi une taille M pour avoir de l'aération, en temps normal je prends du S (1m65, 50kg)

H
Heleen W.
Helaas

De anti UV werkt onvoldoende, toch een allergische reactie opgelopen

Goedemiddag mevrouw,

Wat vervelend om te horen dat u ondanks het dragen van onze UV-werende kleding toch een allergische reactie heeft opgelopen.

Dit is uiteraard niet de ervaring die wij onze klanten willen bieden. We nemen graag persoonlijk contact met u op om de situatie beter te begrijpen en meer duidelijkheid te krijgen over wat er is gebeurd.

Met vriendelijke groet,
Team Ker Sun

I
Isabelle B.
Très

Très bien

K
Karl M.
Super-UV-Schutz für meine Frau beim Mountainbikenort, wo unsere Ziele fast immer im Höhen von 110...

Komfort und Wirksamkeit sind hoch. Passform perfekt. Design gefällt uns sehr gut, und pflegeleicht ist es obendrein

K
Krisztina K.

Perfekt

A
Anonyme
Bonne protection, jolie style, un peu chaud

La coupe est simple et convient parfaitement à un t-shirt. Le tissu est un poil épais. Je privilégierais d’autres modèles pour des sorties en pleine chaleur. J’en suis tout de même satisfaite.

C
CJM95
T-shirt confortable

T-shirt confortable
jolie couleur (nuage d'été)

P
Philippe P.

T-shirt anti-UV - Saint-Malo

A
Angelika W.
Bestens geeignet für Strand, Wandern, Radeln

Das T-Shirt ist optimal geeignet, um vor zu viel Sonne zu schützen. Passform super, ganz kühles leichtes Material, das man in der prallen Sonne, am Strand, beim Wandern oder Radeln bestens tragen kann ohne zu schwitzen. Ich bin echt begeistert!

M
Maria S.
Schöne Farbe, sitzt recht gut und trägt sich angenehm

Ein Oberteil, das ich wieder kaufen würde.

A
Anonyme
Angenehm im tragen

Das Shirt ist sehr angenehm zu tragen auch bei starkem Sonnenschein

M
Miri
Angenehmes Tragegefühl

Da ich während meiner Arbeit viel im freien unterwegs bin, habe ich nach passender Kleidung gesucht. Das Langarmshirt fühlt sich angenehm auf der Haut an, durch den dünnen Stoff ist es gut zu tragen.

P
Patricia P.
Très confortable et couvrant

Joli rouge , très couvrant et pratique

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.