Running jackets

Why wear a trail jacket?

When it comes to trail running or running in nature, it’s not just about choosing a pretty forest path on a Sunday morning. The terrain is often technical, the altitude variable, and the weather conditions can change from sunshine to hail in the blink of an eye. A good trail jacket is not just an accessory: it provides essential protection against wind, rain, or even temperature fluctuations. In formats like ultra trail, where the effort can last for hours (or days!), having a reliable outer layer can clearly make the difference between performance and giving up. Add to that the need to maintain a stable temperature without overheating, and the trail jacket becomes much more than just a shell. It protects you, accompanies you, and allows you to stay focused on what matters: moving forward.

How to choose your trail jacket?

The choice of a trail and running jacket primarily depends on your activity. Do you run in the summer on dry trails? Or are you heading to the mountains to face the elements in any season? In any case, a few key criteria should guide your selection.

• Waterproofing: For exposed outings or at altitude, opt for a waterproof jacket with a technical membrane, like Gore-Tex. It ensures an effective barrier against rain while remaining breathable.

• Breathability: If you sweat like a goat in spring, make sure your running jacket can effectively wick away moisture.

• Lightweight: A good trail jacket should be forgettable. Ideally, it folds into its own pocket and easily slips into a belt or trail bag.

• Freedom of movement: A stretch fabric or ergonomic cut will make all the difference. Good gear doesn’t constrain you; it supports you. And for the more demanding, some models even incorporate ease gussets to follow all your movements.

• Features: adjustable hoods, reflective elements, secure pockets... often, it’s these little details that transform a good jacket into an essential part of your gear.

Don’t forget that a trail jacket should integrate into a complete outfit. To complete your gear, discover our collections of women's trail t-shirts or men's trail t-shirts.

Is a trail jacket waterproof?

Great question. And as often, the answer is: it depends. Not all trail jackets are necessarily waterproof. Some are simply windproof, ideal for dry but cool conditions. Others, however, are more technical and equipped with performance membranes (like the famous Gore-Tex) to guarantee total protection against rain. A waterproof trail jacket is often also breathable, allowing sweat to escape during exertion. This dual criterion – waterproof and breathable – is essential to avoid the sauna effect under the jacket, especially during intense efforts or uphill. To put it simply: if you’re going out for a run in uncertain weather, or if you’re preparing for an ultra trail in the mountains, a waterproof trail jacket will be your best assurance. However, for a 45-minute morning outing in dry weather, a good windbreaker will do just fine. And for those looking to optimize every gram in their bag, there are now ultra-compact jackets, light as a feather, yet capable of keeping you dry. Progress has its perks.

How to dress for running?

Dressing for running isn’t just about piling on layers like a motivated onion. It’s about adapting your outfit to the effort, the terrain, the weather... and your own physiology. The good news? A well-chosen running jacket makes things much easier. In winter or in the mountains, we opt for the three-layer method:

• A technical base layer, close to the body, to wick away moisture;

• An intermediate layer depending on the temperature (light fleece, long-sleeve t-shirt);

• And finally, the running jacket, which offers protection against the elements.

In summer, you can get by with a single layer... unless wind or rain decides to join in. Again, a good ultra-light windbreaker can make all the difference, especially for maintaining a stable body temperature over the miles. And let’s not forget about your feet! The comfort and technicality of trail shoes are just as crucial as your jacket. A smooth stride also requires coherent gear from head to toe.

In summary, the trail and running jacket is not just a piece of clothing. It’s a technical item designed to accompany you in the most demanding efforts, and crafted to provide you with the comfort, freedom of movement, and safety necessary to fully enjoy every outing. Whether you’re a casual runner or a dedicated trail enthusiast, there’s a trail jacket tailored for you. It’s your turn to play.