Anti-UV cooling hat

Weighing just 113 grams when worn, it keeps the heat at bay. The UV-Protective Cooling Hat combines sun protection with water-activated cooling technology—all without any chemicals.

At the heart of the hat, an absorbent polymer fiber pad stores water and releases coolness through slow evaporation. You can activate it in seconds and reactivate it as many times as you like.

• Technology: PolyCool™, ultra-absorbent polymer fibers, evaporative cooling, infinitely reusable.
• Material: outer shell 100% polyester, inner layer 53% polymer and 47% cellulose, lining 100% polyamide. Breathable, absorbent, lightweight.
• Sun protection: UV protection; fabric that blocks UV rays from reaching the head and neck.
• Dimensions: head circumference up to 60 cm, brim 9 cm.
• Size: one size fits all, adjustable with a drawstring; also fits smaller heads around 55 cm.
• Weight: 113 g. Unisex. Available in khaki and beige.

Technical fabric, water—and nothing else. Easy to use, this hat works for you when the sun is beating down, and its quality construction lasts season after season.

Applying sunscreen three times isn’t always enough. A cooling hat, on the other hand, works continuously as long as it stays damp. That’s the difference between enduring the heat and powering through it.

G-Heat has been designing thermoregulation devices since 2017, all of which have been field-tested and validated. This hat delivers on three concrete promises.

• Continuity: You can finish your hike, walk, or day out without having to go back into the shade every hour.
• S Safety: Your head stays cooler than the ambient temperature, keeping you alert and reducing the risk of heatstroke. UV protection complements the system’s defense against the sun’s rays.
• Liberté: A heat wave becomes just another weather condition, rather than an inevitability that keeps you cooped up indoors.

“The polymer fiber pad retains a large amount of water when in contact with the scalp. That’s where the cooling effect really matters, and that’s where it lasts the longest.” — Gwenaël Fournet, Technical Manager at G-Heat

No magic—just physics applied to a well-designed fabric.

One size, two colors, zero hassle. The cooling hat is designed to fit as many people as possible, without having to figure out a size chart.

Here are the three criteria to guide your choice.

• Size: one adjustable size fits all; the drawstring accommodates head circumferences up to 60 cm and can be tightened to approximately 55 cm. One model for the whole family.
• Color: khaki for an outdoor vibe, beige for everyday wear. Two understated colors that go with everything.
• Use: sports and the outdoors, travel and hikes, or work activities in hot conditions. The same hat covers all three.

This hat is part of the cooling caps and hats line, all featuring Polycool technology. If you’re looking for a more snug-fitting brim, the cooling cap or the Anti-UV safari cap offer greater protection for the nape of the neck.

To keep the rest of your body cool, pair it with a cooling neck gaiter or a cooling towel. You have 14 days for a refund and 30 days for an exchange—enough time to try it out risk-free.

G-Heat is a French thermoregulation brand founded in 2017. Every product is designed, tested, and validated in the field, not in a closed laboratory.

When you shop with us, you also benefit from service designed to give you peace of mind.

• Free shipping on orders of €45 or more in France, delivered to a pickup location.
• Shipped within 24 hours, with 100% secure payment.
• Returns accepted within 14 days for a refund, 30 days for an exchange or store credit, and a 12-month warranty.

Trust is also reflected in customer reviews: G-Heat is rated 4.1/5 on Trustpilot.

“Our customers tell us time and again: the wide brim really protects the neck and face, and the cooling effect lasts a long time as long as you keep water handy.” — Romane Benderradji, G-Heat team

As soon as the temperature rises and the sun beats down, this hat comes in handy. Here are the times when it makes all the difference.

1. Sports and outdoor activities: hikes, treks, running. The wide brim protects your face and the back of your neck, while the mesh panel keeps your head cool during exercise without hindering your performance. Remember to bring a water bottle to stay hydrated along the way.
2. Family and leisure activities: sightseeing, walks, the market, gardening. A single adjustable hat that works for everyone—from parents to teens—with the same comfortable, hassle-free fit.
3. Outdoor work: for those who work outside in the heat, immediate refreshment is just a water source away.

And even during a brief shower, it remains effective: rain reactivates it instead of hindering it.

Activation takes less than a minute. No batteries, no chemicals—just water, and PolyCool™ technology does the rest.

1. Soak the hat in water: hot, warm, or cold—it doesn’t matter.
2. Gently wring it out to remove excess water.
3. Remove excess water by wetting mainly the part that rests on your head, and not too much on the brim to prevent it from sagging.
4. Put it on and enjoy the coolness. As soon as it dries, wet it again to reactivate the cooling effect.

Wet it thoroughly, wring it out, and shake it: this simple action restores the cooling sensation as many times as needed.

Proper care extends the life of the polymer fiber. Just a few simple rules are all it takes to keep your hat performing well season after season.

• Use a mild detergent without fabric softener.
• Hand washing is recommended. Machine washing is also possible at 30 °C with a minimal spin cycle.
• Air dry; never use a dryer.
• Do not iron, bleach, or dry clean.
• Never store it while damp to prevent odors.

When treated with care, this hat will serve you well summer after summer