Setting off on a long trek requires organisation and careful preparation. The aim is to pack a minimum of clothing for a maximum of efficiency, focusing on technical, versatile garments. These adapt to all situations — whether in sunshine or bad weather such as rain or wind. Find out which hiking clothes to pack for a long trek.
The three-layer system for the upper body
Just like for a day hiking trip, the three-layer system is your best ally when heading out on a trekking adventure. It can be adapted to the weather, and it's primarily the choice of materials that changes compared to a short hike.
The base layer wicks away sweat and regulates body heat. For a multi-day hiking trip, merino wool garments are the preferred choice. They offer excellent moisture management and prevent odour build-up, so you can wear them for several days without issue.
The choice of insulating second layer depends on your environment and the climate. We recommend going for a more or less lightweight fleece depending on the temperature — its warmth kicks in almost instantly. You can also opt for a down jacket, ideal when temperatures are very low, though not recommended during intense effort.
For your jacket, a hardshell is the right choice. It provides excellent protection against bad weather thanks to its waterproof and windproof membrane. The softshell, while it has many advantages, is best avoided on a long trek where showers can strike unexpectedly. It's simply too hard to predict the weather over several days, especially in the mountains. Better to ensure optimal protection with a rain jacket.
Hiking trousers for a long trek
Having several pairs of hiking trousers is a good idea for a multi-day hike. We recommend packing at least two pairs. For example, you could choose a robust, fairly warm pair and a second lighter option, convertible into shorts. This allows you to handle all conditions. Your choice naturally depends on the time of year, the climate and your destination.
Trousers should meet at least three criteria: durability, water-repellency and breathability. If your trek is more technical, reinforcements on key areas are a real bonus. A water-repellent treatment to provide a minimum of moisture resistance is also essential (if you expect to face bad weather, you can always pack a rain overtrousers as well). Finally, ventilation zips can significantly improve the breathability of your trousers.
In terms of fabric, we recommend synthetic fibres for a long trek. They dry faster, offer greater water resistance and better protection in cold conditions. When hiking for several days, even in summer, mornings and evenings are often cool and damp, so the right trousers are a must. Keep in mind that your trekking clothes need to adapt to as many situations as possible.
Foot protection and essential accessories
Dedicated walking socks are strongly recommended for proper foot protection. They prevent poor moisture management and blister formation — cotton socks are therefore a no-go. For your walking shoes, mid or high-cut boots are a better choice than low-cut ones. They are better suited to situations where ankle support is critical (long treks, technical terrain, heavy packs…).
Finally, don't forget to pack several accessories. In summer or warm weather, a hat or cap works well. In winter or cold conditions, a beanie and a neck gaiter are essential. Always carry sunglasses for eye protection — opt for models with side shields at high altitude.
Hiking clothing for a long trek must be durable, versatile and adaptable to all situations. In addition to the clothes you're wearing and your spare clothing, you can pack a dedicated bivvy outfit. Choose fairly lightweight garments to avoid overloading yourself throughout your hike.
