Originally Posted by
BCDrums
Your joke is lost on the OP.
Right. Water/windproof is the opposite of breathable. Pick one or the other, and move along.
There are laboratory tests that rate these variables figuratively. This particular jacket is rated 20,000 grams/meter squared windproof, 15,000 grams/meter squared moisture vapor permeability (breathable) and 20,000mm waterproof in the column test. This is exceptionally high windproof, breathable and waterproof. Now I am sure if you clamped a piece of fabric to a fire hose you may get some leakage, but I doubt you would get that type of pressure in a rain storm. Those are verifiable numbers, you are talking semantics.