Our waterproof jackets and trousers are 15,000mm which is suitable for use in moderate rain.
Your trousers are treated with a durable water repellent (DWR) layer that causes water to 'bead' on the surface rather than soaking in. DWR treatments slowly wear out over time which can cause it to start absorbing water and lose breathability.
We recommend using a specialist outdoor sports wash such as Grangers 2 in 1 wash and re-proof every 6 to 12 months, depending how much you use them. Please follow the wash instructions on your specific outdoor clothing wash/proof, but use a gentle and low temp cycle to keep your trousers in best condition.
Water resistance (mm)
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Weather conditions
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6 000 – 10 000 mm
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Withstands light rain, moderate snow, light pressure
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11 000 – 15 000 mm
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Moderate rain, average snow, light pressure.
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16 000 – 20 000 mm
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Can handle long walks in heavy rain, wet snow, some pressure.
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20 000 mm +
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Withstands heavy rain, wet snow, high pressure.
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