Flexible waterproof membrane (2000 mm) that keeps you dry.
Ventilation gussets at the front and back, plus micro-perforations.
The jacket folds down into its pocket.
Rainproof zipper pocket at the back.
Waterproofness is a fabric’s ability to prevent rainwater from passing through. A fabric’s waterproofing is determined by measuring its resistance to pressure exerted by a water column, measured in mm (based on the ISO 811 standard). The higher the pressure, the more waterproof the fabric.
Material with a waterproof rating of 2000 mm resists pressure exerted by 2000 mm of water (which roughly corresponds to a 2-hour rain shower).
To determine whether a fabric is breathable, we measure its evaporative resistance (based on ISO 11092 standard).
The lower its resistance, the more the fabric allows body moisture to escape, increasing its breathability.
For example: RET < 9 = extremely breathable fabric.
Based at the B’Twin Village in Lille, our product design team is continuously working to make cycling more comfortable for our users.
Our goal: develop products that meet our users' needs and remove hindrances to enjoyable cycling.
We test our products in the field, since we are convinced that only by subjecting our products to real-world conditions, like those experienced on your bike, can we offer the best products.
A rating to compare products' environmental impact
A product’s environmental impact is calculated based on its entire life cycle using various indicators. An ABCDE rating shows the environmental impact of a product. Put forward by ADEME, it takes into account production, transportation, usage, and waste generated at the end of a product’s life.Decathlon displays this information voluntarily to help you identify products with lower environmental impact.Learn more athttp://sustainability.decathlon.com/
So I went for a cycle in the rain for two hours it survived the cycle and kept me dry. I am not sure about breathability but I definitely think it will be fine as it has so many vents. Great fit and keeps u dry love the back pocket. Would have given it 5 stars but needed some reflective strips on the arms.