Hiking in any rain gear will make you sweat, none of them are going to pass more Vapor than you can produce. At least you can trust the HH to keep you dry from the outside. I've yet to use a set of "breathable" rain gear that didn't sweat me out in a hurry when exerting even with the pit zips wide open and just a t shirt underneath. Lots of fancy marketing hype in my experience.
OK guys, If you were going to spend 10 days on Kodiak, What rain gear would you trust your life on.
I usually carry an UL set of rain gear for backup and, in the past it's always been..., but this year I purchased a set of the Teton's, so that will be my backup.