Re: Rain Gear Woes
I was doing a little reading on the science behind making rain gear waterproof and breathable,
Water resistance is measured by pressure of water that can be kept out of the fabric for a 24 hour period time frame, fabrics rated at least 20,000mm/24hour time period are considered waterproof.
few examples of products and there ratings at mm/24 hour
eVent 30,000
Gore-Tex pro-shell 3 layer 28,000
Marmot precip plus 25,000
Kuiu's toray Dermizax 20,000
Mountain Hard wear conduit 20,000
Marmot precip 15,000
Depending on what product of Marmot rain jacket you were sold, say the precip regular material is not considered waterproof by industries standards.
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