Double-walled tents consist of two layers: a waterproof roof and an inner chamber made of breathable fabric. This configuration offers excellent protection against rain and reduces condensation inside the tent, a considerable asset in humid climates or on treks at altitude where temperature variations can be significant.
Designed to be lighter than double-wall tents, single-wall tents use a single waterproof fabric that acts as both roof and walls. They are particularly popular for treks where weight is a critical factor. However, they may perform less well in terms of condensation management, which requires adequate ventilation.
Hybrid tents combine the features of single- and double-wall tents. They offer a good balance between weight and protection, and are suitable for a wide range of weather conditions.
For top-level trekkers, the weight and volume of the tent are crucial. A lightweight tent (generally between 1 and 3 kg) makes long treks easier and conserves energy. However, it's crucial not to sacrifice strength and durability for lightness. Check the materials used and make sure they offer a good compromise between weight and strength.
A trekking tent must be able to withstand a variety of weather conditions: strong wind, driving rain, even snow. Wind resistance is often enhanced by a sturdy pole structure and aerodynamic profile. Waterproofing is measured in millimeters (mm), and a water column of 3000 mm or more is generally sufficient for most trekking conditions.
Tent capacity is generally expressed in terms of the number of people. For a solo trek, a single-person tent may be sufficient, but a two-person tent offers more space for gear without adding a lot of weight. Also consider the storage space available, such as vestibules, which are essential for storing wet or dirty gear without cluttering up the living space.
After a long day's hiking, you'll appreciate a tent that's easy to pitch. Tents with color-coding or clip systems simplify set-up and reduce the time spent wrestling with potentially complex equipment.
Nylon is lightweight and strong, making it ideal for trekking tents. It's also quite flexible, which can help distribute tension on the tent in windy conditions. Polyester, less prone to stretching when wet, offers good UV resistance.
The choice of coating is crucial to the watertightness of your tent. Polyurethane (PU)-coated silicone is common and offers good water resistance. Some fabrics are also treated with flame retardants or UV protectors, increasing the tent's safety and longevity.
In conclusion, the choice of a trekking tent for a top-level athlete should not be taken lightly. Technical specifications must meet precise requirements for lightness, strength and comfort. Every detail counts to ensure that your expedition is not only successful but also enjoyable.