When summer arrives and the asphalt starts to heat up, running becomes a whole new story. Sweat pours, legs feel heavier, breath comes in short gasps: the heat turns every outing into an ordeal. And for serious runners, it's impossible to stop until September. The good news? There are practical solutions to help you tackle those miles, even under the blazing sun. At G-Heat, we design cooling vests specifically for runners, even in temperatures of 30°C.
Running in hot weather: understanding the risks and adapting
🏃♀️ Running in hot weather: a challenge for the body
We can't say it enough: running in the heat isn't just uncomfortable, it's also a real physiological challenge. At temperatures above 25°C, your body starts to draw on its reserves to maintain its temperature. Above 30°C, each stride costs you more energy, your heart races, and fatigue sets in faster than expected. In short, you sweat... but not just because of the effort.
This invisible battle to regulate your temperature can lead straight to dehydration or heatstroke. That's why it's important, even for experienced runners, to adapt your strategy, your pace... and your equipment.
The limits of traditional clothing
We often think that a lightweight, breathable T-shirt is enough. And that's true, up to a point. But when the air is scorching, humidity is everywhere, and shade is nowhere to be found, even the best fabrics reach their limits. Because while they wick away sweat, they don't transform it into coolness.
The result? You run, you sweat, your T-shirt sticks to your skin, and your body heats up... again and again. What you need is not just a garment that “lets air through,” but a fabric that can act directly on your body temperature. And that's exactly what a cooling running vest does.
Essential criteria for running in temperatures above 30 degrees
When it's hot, every gram counts. And every textile property becomes strategic. To keep performing without putting your health at risk, here are the criteria your outfit must meet:
- Lightweight: so you forget you're wearing anything at all.
- Breathable: to allow air to circulate freely around your body.
- Quick-drying: to avoid chafing and stay focused.
- Sun protection: essential in exposed areas.
- Active thermal regulation: the little extra that becomes a big advantage when the heat rises.
This last criterion is often the missing link. A cooling vest is not just a piece of clothing: it's a real thermal strategy.
The cooling running vest: a tailored solution
👨🔬 Evaporation technology: how does it work?
A cooling running vest is a concentrated dose of textile common sense. Its secret? Evaporation. Thanks to technical fibers such as the Polycool technology developed by G-Heat, it absorbs water and gradually releases it in the form of coolness.
You soak it, wring it out slightly, and wear it. That's it. The water evaporates slowly when it comes into contact with the air and your body in motion, producing a natural cooling effect. No batteries, no chemicals: just smart and effective textile technology.
The benefits:
By reducing the temperature around your torso, the cooling vest limits overheating, improves your comfort, and allows you to maintain a more consistent level of effort. You sweat less, recover better, and stay alert even after several kilometers.
It's also a real safety feature: by limiting heat stress, you reduce the risk of cramps, heat stroke, and loss of alertness. And that applies to both leisure outings and competitions.
Why invest in a running vest in summer?
Wondering if it's really worth investing in a summer running vest? The answer depends on your habits... but as soon as you spend more than 30 minutes running in the sun, it's a valuable ally.
Running vest:
Lightweight, breathable, and unrestrictive, a summer running vest is the perfect addition to your running outfit. It helps you maintain a stable temperature, avoid overheating, and stay efficient without sacrificing comfort.
Trail vest:
In trail running, where heat is often added to the elevation gain, it's even more obvious. A trail vest or cooling sports vest becomes a real support over long distances, especially when shade is scarce.
And at G-Heat? Vests designed for runners
♾️ The Cooling Sports Vest: lightweight, effective, and infinitely reusable
At G-Heat, we developed the Cooling Sports Vest for the most demanding conditions. Light as a feather and with no rigid structure, you'll forget you're wearing it from the moment you start running. How effective is it? 1 to 2 hours of cooling, without any uncomfortable dampness or stickiness.
Activated in seconds thanks to Polycool technology, it is ideal for regular runners and summer challenge enthusiasts alike. No batteries or refills required: just run it under water.
When and how should you wear your running vest?
Ideally, wear it directly on your skin or over a lightweight technical T-shirt. It is perfect for long distances, intense workouts, or running in hot weather. And as soon as it dries, simply reactivate it: a few seconds under running water, and you're good to go.
Cooling sports vest: proven effectiveness
The feedback speaks for itself: better recovery, an almost immediate feeling of coolness, and reduced fatigue. Runners who have adopted our Polycool vest can't do without it. An accessory that has become essential for performing well... and enjoying running, even in summer.
Our other equipment for running in the heat
And for a complete outfit, check out our full range of cooling clothing: cooling T-shirts, bandanas, neck gaiters... Technical, lightweight accessories designed for those who don't let the weather dictate their training.
Because at the end of the day, it's not the weather that decides your training, it's your equipment!
