If air is the best insulator, water is the worst. Water conducts cold and heat. Therefore, avoid wearing wet clothing. But in the effort, the body releases perspiration. The role of modern clothing is to evacuate this perspiration towards the outside, without however letting in moisture. To do so, one must dress according to the"three-layer principle". Each layer has its role in keeping the body warm.
- Layer #1 : Evacuate perspiration
It is made of fine polyester clothing and fitted against the body. Some manufacturers mix Merino wool to make them warmer. Other models on the contrary are very thin to be used in summer. Polyester extracts moisture. Even in full effort, the body remains dry, the base to feel warm.
- Layer #2: Creating Heat
The second layer is there to maintain an air barrier between the body and the outside. It consists of more or less thick polar fibres that can be multiplied at will according to the conditions encountered
- Layer #3: Protection
The last layer isolates the first two from the surrounding environment. It is often a wax or a windbreaker that prevents air or water (rain, spray...) from entering the interior. Waterproof, but breathable! Of course, we will wear a breathable wax, otherwise all the efforts made by equipping ourselves with good first coats will be destroyed!
To avoid!
- To keep warm, never use cotton clothing (t-shirt or other). This material retains water. Quickly, your body is wet.
- Wool sweaters (even cashmere!) are less good than a good fleece..
