How waterproof is it?
This jacket uses a certified 5,000 mm H2O (Schmerbers) coating, according to the JIS 1092 standard. This Schmerbers value is an indication of its ability to withstand the pressure of a 5-metre column of water. What this actually means is that it keeps you protected during light and prolonged rain, ideal for your demanding adventures.
What is water repellency?
Water-repellency is a surface treatment that sees water slide off the surface rather than be absorbed by it. Score: your jacket remains lightweight, with optimal breathability. We’ve strengthened this protection by making the main rain-exposed seams waterproof.
How does this jacket breathe?
This jacket efficiently wicks away perspiration thanks to its RET of 12. RET measures Thermal Evaporative Resistance: the lower the score, the better. Scale: <6 = extremely breathable, <12 = highly breathable, <20 = breathable, >20 = not very breathable. You remain dry, even during prolonged periods of exertion.
How can I maintain the waterproofing?
Optimise the durability of its water-repellency: reactivate the protective layer every 3 washes (rinsing thoroughly), or after a dozen uses in the rain. Effective methods: 15 minutes in the tumble dryer on a synthetic programme, a hair dryer from 20 cm away, or temperate iron without steam. Efficiency maintained!
Choosing a jacket according to your level of physical exertion?
The intensity of the exertion determines the extent of perspiration transfer: if breathability is insufficient, vapour condenses inside (saturation effect). This jacket is suitable for day-long hikes up to 5 km/hr, at an intermediate level. Adapt your equipment to your goals!
What products should be paired with this jacket?
For optimised protection, pair this jacket with our NH500 overtrousers for men, for a comprehensive system. Jacket + trousers set = full body protection against the wind and showers. This “full-kit” approach maximises efficiency while still offering mobility and technical comfort.
