Waterproof fabric
The waterproofness of a fabric, ensured by a coating or membrane, is measured in Schmerber or mm H20 (pressure exerted by a column of water). The higher the number, the more waterproof the fabric.
This jacket is designed with a coated waterproof component (JIS 1092 standard): this component resists 5000 mm H20 (Schmerber) before washing (i.e. the pressure exerted by 5 meters of water column).
Breathable fabric
Le tissu de notre produit est très respirant - 12 RET .
La respirabilité d’un composant se mesure par sa “Résistance Évaporative Thermique”. C'est sa capacité à laisser échapper la vapeur d’eau produite par le corps pendant l’effort vers l’extérieur. Plus le coefficient de Résistance Évaporative Thermique (RET) est faible, plus le tissu est respirant.
RET < 9 : tissu extrêmement respirant ;
RET <12 : tissu très respirant ;
RET < 20 : tissu respirant ;
RET > 20 : tissu peu ou pas respirant.
How to maintain the waterproof resistance of your jacket?
To ensure water repellency, we recommend reactivating it regularly.
You can do this every 3 washes (a thorough rinse is essential), or after ten or so uses in the rain.
You can easily reactivate water repellency with heat:
- with your tumble-dryer for 15 minutes (synthetic program);
- with a hairdryer at a distance of 20 cm, going back and forth 2 times;
- or 2 passes with the iron, set on delicate without steam function.
Choosing the right waterproof jacket for your sporting activity
This rain jacket is designed for a 2-hour hike at a maximum pace of 5 km/h, with no change in altitude.
During sporting activities, we sweat more or less depending on the intensity and length of the effort. If the breathability of the fabric is not adapted to the effort, perspiration vapor condenses inside the jacket. You get wet inside. It's not the rain that penetrates, but the perspiration vapor that condenses. You need to choose the right rain jacket for your type of exertion.
