Join Date: Jul 2007
Location: Beech Grove, Indiana *sigh*
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The link doesn't work, so I can't speak to the jacket in specific. But 10k, 15k, etc. is a common measurement. If you plan on going in the rain, I don't recommend anything less than 10k or it will get waterlogged and you may get wet. There is a great explanation of the waterproof/breathability ratings on this site.