Reviewed by Rob from Washington on Saturday, June 27, 2015
I purchased this jacket while training to climb Mt. Rainier in Washington. I've used it primarily over a light base layer top and climbed to Camp Muir 3 times and Mt. Baker once while wearing it. We've not had much rain, but in the rain it kept me dry and well ventilated. I tend to run quite hot and the jacket breathes quite well, while roped up and climbing. I was hesitant to choose this over a Gore Tex from Arcteryx, I actually ordered this one and a comparable jacket from them through Sierra, and sent the Arcteryx back. This one is a tad heavier, 4 OZ. +/-, but has been rock solid. Your mileage may vary. Best of luck.