Technical Details

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

Sustainability: 100% recycled polyester.

Maximum longevity: ultra-resistant and flexible fabric.

Versatility: suitable for everyday use and sports.

Features
  • Edge width of 10 cm at the front and 8 cm on the sides
  • Side and rear openings ensuring excellent air circulation.
  • Absorbent inner band for increased comfort when sweating
  • Adjustable tightening system at the back for a personalized fit
  • Removable chin strap
  • Sides can be raised with snaps for a modular style
  • Ultra compressible to take anywhere
  • Weight: 109 g
Composition

  • 100% recycled polyester.
Washing and care instructions
Hand wash, do not immerse in water
No bleaching
Air dry, flat
No ironing
No dry cleaning

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 chapeaux anti-UV, certifié 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.

Side ventilation for optimal comfort in any conditions

The side vents ensure excellent air circulation, delivering optimal comfort even on the hottest days.

Perfect fit thanks to integrated drawstring

This hat features a drawstring that allows you to quickly and easily adjust it to your head size, ensuring a perfect fit even in windy or intense activity conditions.

Frequently Asked Questions

For which activities is this product designed?

This UPF 50+ sun protective product is specifically designed to accommodate your active days, whether they involve sports or more casual daily moments.

Perfect for hiking, running, tennis, or just taking a walk outdoors, it combines comfort, breathability, and optimal defense against the sun’s rays. Versatile and high-performing, it supports you through every activity, whether you’re on the move or simply seeking comfort during downtime.

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.

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.

Is this hat foldable?

Absolutely. It is even perfect for traveling. You can fold this hat without damaging it, so you can store it easily in a bag and always keep it on hand.

Is this hat adjustable to various head sizes?

Yes, it has an adjustment mechanism to fit comfortably around different head sizes.

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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 sun 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.