This functional feature is obtained by applying a water-repellent hydrophobic treatment to the fabric. This process prevents water from sticking to the fabric's surface, reducing its ability to absorb water. When movement is added to the equation, water runs off the fabric. This is what is meant by water-repellent. Thanks to its water-repellent properties, water does not soak into the outer fabric. The pants remain light and dry quicker.

It is extremely important to be protected from the wind, whether active or resting, as it cools the body down enormously. According to the "windchill" model, which measures how the air temperature feels when factoring in the wind and cold: at a temperature of 23°F combined with winds of 19 mph, the temperature will feel like 32°F. If the air temperature is 32°F and wind speed is 20 mph, the temperature felt will be 21°F. Our product components shield you from the wind

Decathlon is the first French company to implement environmental ratings. These ratings has been developed with the ADEME (French Environment and Energy Management Agency) as well as other French companies. The ratings are used to assess the environmental impact of product thanks to a scale from A to E with A being the best rating.
http://sustainability.decathlon.com