Returns extended until January 15, 2026.

UV Zip-up T-shirt - Boston
UV Zip-up T-shirt - Boston
UV Zip-up T-shirt - Boston
UV Zip-up T-shirt - Boston
T-shirt zippé anti-UV bleu pour homme, idéal pour le tennis, offrant une protection solaire UPF 50+.
UV Zip-up T-shirt - Boston
T-shirt zippé anti-UV bleu pour homme, UPF 50+, idéal pour le tennis en extérieur avec protection solaire.
UV Zip-up T-shirt - Boston
UV Zip-up T-shirt - Boston

Nuvées by Ker Sun

UV Zip-up T-shirt - Boston

UPF 50+

Sports activities

$87.90

Your order will be shipped from France. All import duties, customs fees and local taxes are the responsibility of the customer. These charges are not included in the product price or shipping cost and may be collected upon delivery by the carrier.

Color
Color: Ocean Blue
Size
XS In stock

When choosing a size, take the size corresponding to your body measurement. Each article can have a different size chart.

Free shipping to the U.S. on orders over $100. Taxes and duties are not included in the listed prices. For returns, the shipping label costs $9. See delivery and return options.

Complete your look

Technical Details

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

Optimal comfort: ultra-light and extensible.

Quick drying.

Opacity: anti-transparency technology.

Our Ocean Blue UV sports T-shirt for men will effectively protect your skin from UV rays during all your physical outdoor activities. This is THE multi-sport UV protection T-shirt to have in your wardrobe, for all your activities such as hiking or brisk walking, running, tennis or cycling.

Its technical UV protective fabric is ultra-lightweight, ensuring rapid evacuation of perspiration and total freedom of movement.

Finally, the long sleeves are fitted with thumb loops to protect your wrists and the tops of your hands, if you wish. Unlike conventional sports T-shirts, the sleeves of our UV-blocking sports T-shirt are designed to protect your entire lower body without allowing UV to pass through the grommets, even when you're not using them.

Looking for comfort and performance? With our UV sports t-shirt, you'll always be ready to take on your sporting challenges!
Product benefits
  • Protect your skin from the sun during all your physical activities with our UV protective sports shirt
  • Ultra-light and breathable, for good moisture transfer
  • Practical with its half-zip and discreet thumbholes
Features
  • UV Protection: UPF 50+ sun protection factor (maximum certification). Blocks over 98% of UV rays.
  • Thumbhole to protect your hands from UV rays if required. The sleeve is designed to be discreet when not in use.
  • Slim fit
  • Long sleeves
  • With a half-zip for easy donning and greater comfort
  • Fabric not designed to withstand chlorine and salt water.
  • Good moisture wicking from perspiration.
  • Stretch fabric for maximum comfort.
  • Quick dry.
Composition

  • 93% recycled polyester, 7% elastane.
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.
  • Do not iron.
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 de sport 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.

Built-in thumbholes for better hand coverage

Discreet thumbholes offer extra coverage for your hands and wrists, giving you boosted protection for your sporting activities.

Half-zip with adjustable high collar for optimal coverage

This sports T-shirt has a practical half-zip that can transform the neckline into a higher collar for maximum sun protection.

Frequently Asked Questions

For which activities is this product designed?

This UPF 50+ sun protective product is ideal for all your sporting activities, ensuring optimal sun protection and comfort.

Designed to move with you and provide excellent breathability, it meets the needs of even the most active individuals. Perfect for hiking, trekking, running, yoga, cycling, tennis, or any other outdoor sport, it combines performance and sun safety, making it the multifunctional solution for your active days.

Is the fabric breathable and able to wick away perspiration?

Yes, this product is made from a technical fabric that promotes airflow and wicks away moisture. This breathability helps you stay dry and comfortable, even during extended physical activity.

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.

Ker Sun alongside dermatologists and healthcare professionals since 2021

Over 900 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.

Free shipping for orders over $100.

Ker Sun rated 4.6/5 (+3000 reviews).

Secure payment.

Our mission at Ker Sun is to provide safety and peace of mind for those who are most sensitive or intolerant to the sun.

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