Heavy rain can wash out the waterproofing in the outer layer of performance jackets. Even if the membrane of these jackets is completely waterproof, the shell layer is usually additionally protected so that it does not soak up water. This is because a wet shell layer can reduce the breathability of the membrane by up to 80%. Clothing should therefore be re-waterproofed when necessary. The right time to do this is as soon as water forms a wet patch on the shell layer instead of rolling off it. The easiest thing to do is to waterproof clothing after washing, then you are sure to be on the safe side.
Have more questions? Submit a request