How is the waterproofness of the NH100 rain jacket measured?
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 water pressure, the more waterproof the fabric. This waterproof jacket resists the pressure of 5000 mm of water (equivalent to a rain shower lasting 1h).
To approve this, the NH100 waterproof jacket was placed in a shower for 1h, under 60L of water/m²/h. This test reproduces the average conditions of a rain shower in the mountains