Working towards more environmentally-friendly dyes
Our teams work on finding innovative processes that reduce the use or pollution of water during manufacturing. The “dope dyeing” technique (mass dyeing) saves up to 60% water and significantly reduces CO² emissions. As such, it allows for a more sustainable clothes dyeing.
For this jacket, we began this process on the main fabric in navy blue and on the turquoise and khaki linings, with other colours to follow using this technique.
A score for comparing products' environmental impact
On a scale of A to E, this jacket obtained a score of B. Our products' environmental impacts are calculated over their entire life cycle. A score is given to each product so that you can easily identify the more eco-friendly products within a particular family (T-shirts, trousers, backpacks).
Decathlon is a voluntary supporter of this environmentally-friendly labelling approach.
Waterproofing of the garment
The garment passed a shower test under 60 litres of water/sqm/hour for one hour. This test reproduces the average conditions of a rain shower. The fabric of this jacket is water repellent, i.e. water runs off its surface without getting absorbed. This prevents the fabric from soaking up water and keeps it lightweight and breathable. The water repellent property is achieved by treating the fabric's exterior. In addition, we taped the main seams that are most exposed to the rain.
How to maintain the waterproof property of your jacket over time
In order to maintain good waterproofing over time, the fabric's water-repellent properties must be restored regularly. We recommend doing this every three washes or after a dozen uses in the rain. The waterproof property is easily reactivated by warming the fabric: either in your tumble dryer or with a hair dryer, for example, over a relatively short period. If you are washing it, it must be thoroughly rinsed.
Waterproof rating expressed in mm or schmerber
We measure a fabric's resistance to water pressure, expressed in terms of the height of a water column in mm (based on the ISO 811 standard). The higher the water pressure, the more waterproof the fabric. A component with a waterproof rating of 2,000 mm can therefore withstand the pressure exerted by a 2,000 mm water column.
To find out whether a fabric is breathable, we measure its thermal evaporative resistance coefficient (RET) based on the ISO 11092 standard. The lower the fabric's resistance, the more water vapour generated by physical activity can escape, and the higher the fabric's breathability.
- RET < 9 = extremely breathable fabric
- 9 < RET < 12 = very breathable fabric
- 12 < RET < 20 = breathable fabric
- RET > 20 = little or no breathability
How to choose your waterproof jacket according to your activity and your sporting effort?
During sports activity, the extent to which we perspire depends on the intensity/duration of the physical effort. If the breathability of the fabric is not adapted to your type of physical activity, the perspiration vapour condenses inside the jacket. You will feel damp inside: this is not rain coming through, but perspiration vapour condensing. You therefore need to choose a rain jacket according to your type of physical activity. This jacket is designed for 2h hiking at a max. speed of 5 km/h.
Additional recommended products
Wear the NH500 Waterproof over-trousers to protect your lower body as well. You will then have a comprehensive protection system that is very effective against the wind and showers.
And, first and foremost: we have also started using the most environmentally-friendly dyeing process on these over-trousers since 2019.
Our hiking jackets and waterproofs are guaranteed for 2 years.
Our commitment? To provide long-lasting products that you can use for all your country walks and strolls. Because the products we love the most are those that have a story to tell and will have more to tell in the future!