Waterproofing of the garment
This clothing was validated in a shower test using 60 L/sqm/hr of water for 1 hour. This test reproduces the average conditions of a shower.
The fabric of this jacket is water repellent: this is its capacity to make water run off its surface without absorbing it. As a result, the fabric does not soak up water and stays light and breathable. A fabric is made water repellent by applying a treatment to its outer surface.
What's more, we have taped the main seams, those most exposed to the rain
How to maintain the waterproofing of your jacket over time
In order to maintain good waterproofing, the fabric's water repellent properties must be reactivated: we recommend doing this every 3 washes or after a dozen uses in the rain. After washing, the product must be rinsed thoroughly and then the water repellent 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. You will find all our advice in the instructions of this product data sheet.
Measurement of the waterproof rating expressed in mm or schmerber
The resistance of a fabric is measured by the height of a water column in mm that can be supported by the fabric (test based on the JIS 1092 standard). The higher the pressure, the more waterproof the fabric. A component with a 5000 mm waterproof rating can therefore withstand the pressure of a 5000 mm column of water.
Component breathability
To find out whether a fabric is breathable, we test its evaporative resistance or RET (based on the ISO 11092 standard).
The lower the fabric's resistance, the more water vapour generated by physical activity can escape, hence 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 sports discipline and the intensity of your physical activity
During sports, the extent to which we perspire depends on the intensity or duration of the physical activity. If the breathability of the fabric is not adapted to your type of physical activity, the perspiration vapour condenses inside the jacket.
You feel damp inside: this is condensing perspiration vapour rather than rain getting inside.
You therefore need to choose a rain jacket according to your type of physical activity.
This jacket is designed for one-hour hikes at no more than 5km/h.
Additional recommended products
Raincut over-trousers for protecting the legs as well, thereby providing a very effective complete outfit to protect you from the wind and rain showers.
