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7 Posts
I'm on my second 02 jacket and have found them to be completely waterproof and fairly breathable. I agree--if a jacket is totally breathable, it's not going to be waterproof. I find I don't sweat too much in the 02, and I wear it for running as well as biking. It's surprisingly warm. The only downside is that the fabric is a bit papery, which means it can rip easily.