Sounds like the revolution comes from what happens when you sweat. I read that most waterproof fabrics do a good job of keeping water out. It's what happens wh

Sounds like the revolution comes from what happens when you sweat. I read that most waterproof fabrics do a good job of keeping water out. It's what happens when you sweat that makes the difference. If there's water on the outer layer .. the sweat staying inside (soaking you from within). This is where this fabric excels .. removing the external water layer; allowing sweat to exit.