Men's Mountain trekking down jacket X-Light - Black

For this down jacket filled 75/25, the fill power of the down/feather is guaranteed to be greater than or equal to 540 CUIN. The fill power is a measure of the down's thermal insulation capacity and its potential to "trap" air. Consequently, the higher the fill power (i.e. the higher the CUIN number), the more space it occupies and the more air it traps thereby delivering more thermal insulation.

The down's long-lasting fill power gives it 3 important qualities for hiking: - Thermal insulation thanks to the air trapped in the down and feathers - Ultra-lightweight: to provide equal warmth, feathers are lighter than synthetic wadding. This saves even more weight in your backpack - Ultra-compressible

Thanks to our traceability system, we can guarantee the origin of the feathers, in compliance with our commitment to use responsibly sourced materials. Our suppliers are committed to using only feathers that come from ducks that are bred for their meat and which are plucked after slaughtering. http://developpement-durable.decathlon.com/documents-et-rapports/documents/

Synthetic filling (wadding) is an effective alternative to feathers: - it provides good thermal insulation when damp - it increases breathability and is recommended for dynamic exercise (feathers are recommended for static or moderate activity)

The down jacket will be worn all year round and will certainly need to be washed. Follow the instructions by clicking the link below: http://www.quechua.com/wash-your-down-jacket

The fabric used for this down jacket is water-repellent. It makes drops of water run off the fabric so it takes longer for water to get inside the down jacket, giving you time to find shelter. The down jacket is not waterproof. We therefore recommend you wear a waterproof jacket above the down jacket if you are under the rain for a long period.

The product's environmental impact is calculated over its entire life cycle using different indicators. An overall ABCDE rating is given to help you easily identify products with the best environmental performance by comparing and contrasting products of the same type (T-shirts, trousers, backpacks, etc.). Decathlon actively promotes this environmental rating initiative. For more information: http://sustainability.decathlon.com/