anyone know the CFM rating on this jacket. I already own it. I'm just curious, given the breathability rating.

The CFM rating is approx 4-7 cfm of air permeability. being a waterproof jacket, this unique quality allows a small amount of air to pass through the membrane, and more importantly, allows the moisture rich air inside the jacket to pass out of the jacket. a Gore-tex jacket has 0 cfm rating, but also performs much less in breathability.

Yes, cubic feet (of air) per minute. Having worn the jacket on a particularly gusty ridge, I found that wind cut through it pretty easily. The jacket is extremely breathable and waterproof, but in my experience does not do the best job blocking the wind. That's a sacrifice I would make again, however, for the breathability/waterproofness combination that this jacket has. I'm just curious as to the CFM numbers for comparison purposes.

Hey Shawn, I assume you mean, "cubic feet per minute"? So even with the high breathability, I would expect the CFM to be close to, if not 0... meaning 0% of the wind gets through, or in other words it blocks 100% of the wind like any other waterproof/breathable membrane... maybe we can get a comment from BC.com?