Jadecool

One technology. An entire line to get you through the summer without faltering.

JadeCool™ technology powers the most versatile G-Heat pieces in the world of cooling. The principle is always the same: jade microcrystals integrated into the fabric, activated by water, delivering a cooling sensation in just a few seconds. The style varies depending on your needs.

For accessories, you’ll find the cooling towel and its XL cooling towel version to cover your neck and shoulders. To protect your neck and face, the cooling neck wrap snaps around your neck in two seconds.

When it comes to apparel, the collection dresses the whole family with its UPF 50+ UV-protective pieces:

• For men’s sports and everyday wear: the men’s cooling T-shirt, with a slim fit, and its long-sleeve version for outdoor work
• For active women: the women’s cooling T-shirt, with a fitted cut, available in several light and dark colors
• For kids: the kids’ cooling T-shirt, lightweight and easy to activate for summer outings

Looking to round out your gear? Check out our sister collections:

• The complete range of cooling towels, from standard to XL sizes
• All cooling T-shirts for men, women, and kids
• The full line of cooling apparel to outfit you from head to toe

One technology, multiple sizes, one simple step: wet it, wring it out, put it on

Jade isn’t just a decorative element on the fabric—it actually works.

JadeCool™ harnesses the natural thermoregulatory properties of jade, which is integrated into the fiber in the form of microcrystals. When in contact with the skin, these crystals conduct body heat outward. Combined with water evaporation, they create an immediate cooling sensation.

“Jade transfers body heat to the air, and the evaporating water does the rest. We don’t forcefully cool the skin—we help your body release the heat it’s already producing. It’s physics, not magic. ” — Gwenaël Fournet, Technical Manager at G-Heat

In practical terms, you benefit in three ways. These are the three promises that guide every G-Heat garment:

• Consistency: You can finish your run, family outing, or workday without having to seek shade every ten minutes
• Safety: JadeCool™ fiber features UPF sun protection, a barrier that limits heat stress and heat-related fatigue
• Freedom: No need for electricity or batteries—just refresh the garment at the first water fountain and you’re good to go

All without chemicals, and reusable as often as you like. Thermal comfort, the sustainable way

The right question isn’t “which one is the best.” It’s “what is it for?”

All products in this line feature the same JadeCool™ technology. The choice depends on the area of the body you want to cool and the context of use.

For targeted, instant cooling: the cooling towel. Whether on the back of the neck, forehead, or shoulders, it’s the perfect tool for post-workout recovery. The XL version covers a larger area for extended breaks.

To protect the neck and lower face: the cooling neck gaiter. Ideal under a helmet, while biking, or at work—where sweat tends to accumulate the most.

For all-day cooling: the cooling UV-protective T-shirt. Short sleeves for sports, long sleeves for outdoor work, and maximum arm coverage.

As for colors, the choice depends on your exposure:

• Light colors (white, sky blue, beige): reflect more sunlight, better for long periods of sun exposure
• Dark colors (black, gray, green): more discreet for the city, the office, or work

JadeCool™ is the evaporative solution within the G-Heat ecosystem. For even longer-lasting coolness during stationary work in the sun, PolyCool™ technology relies on water retention; for dry cooling without water in confined spaces, PhaseCool™ technology uses phase-change materials. To compare these approaches, explore JadeCool technology, PolyCool technology, and PhaseCool technology.

A French brand with products field-tested since 2017.

G-Heat designs personal thermoregulation devices that are conceived, tested, and validated under real-world conditions. The JadeCool™ line is available directly from the official store, with the corresponding warranties.

“Staying outside when others go inside—that’s what drives us. Every JadeCool™ product undergoes our field tests, in direct sunlight and while in motion, before it reaches you.” — Édouard Castaignet, G-Heat founder

What you get when you order from G-Heat:

• Free pickup at a pickup point on orders of €45 or more, shipped within 24 hours
• Returns and exchanges possible within 14 to 30 days, free within the European Union
• 12-month warranty and 100% secure payment
• A 4.1/5 rating on Trustpilot, based on thousands of customer reviews

Responsive customer service, a team of passionate experts. Coolness, delivered

It’s 35 °C outside. JadeCool™ fiber never takes a summer break.

The line caters to all types of users, from the most demanding athlete to a Sunday family outing. Here are the use cases, in order of relevance:

1. Sports and outdoor activities: running, trail running, cycling, racquet sports. Wear the towel around your neck between sets, and the T-shirt throughout your outing. The cooling sensation can reach up to 15 °C as soon as it’s activated
2. Family and daily life: beach, park, market, gardening. The kids’ T-shirt and towel turn a sweltering day into a peaceful outing
3. Mobility: whether by bike or motorcycle, the neck wrap provides a cool spot where heat builds up under the helmet
4. Health and seniors: for people sensitive to heat, a simple thermal aid that lets you go out without suffering from the heat wave
5. Outdoor work: The long-sleeve T-shirt and neck cooler are perfect for days spent outdoors, with no need for a power source

Summer lasts three months. With JadeCool™, you won’t even notice the temperature anymore.

Four steps. Not one more.

JadeCool™ technology is activated with water—no preparation or accessories needed. The process is the same for the towel, neck band, and T-shirts. Here’s what to do:

1. Soak the product in water until the fabric is fully saturated
2. Wring it out firmly: the fabric shouldn’t drip, just remain damp
3. Flick it (shake it with a sharp motion) to activate the jade microcrystals with the flow of air
4. Put it on or place it on the area you want to cool: you’ll feel the coolness within seconds, without feeling soaked

The effect lasts for several hours. As soon as it starts to wear off, simply reactivate it at the nearest water source. A fountain, a faucet, or a water bottle will do.

No electricity, no batteries, no chemicals. You can do this while walking

When properly cared for, jade lasts season after season.

JadeCool™ items can be washed like any standard technical fabric, provided you follow a few simple rules to preserve the microcrystals and UV protection.

• Wash in cold water or at a maximum of 30 °C, preferably on a delicate cycle
• Do not tumble dry: excessive heat damages the fibers and jade crystals
• Air dry, either flat or on a hanger, away from direct sunlight
• Store in a dry place once the garment is completely dry to prevent odors

Avoid fabric softener: it clogs the fibers and reduces their ability to wick moisture away. Just water and some drying time, and the garment is ready for many more cycles