Originally Posted by
banerjek
I'm a fan of Gore Active products in general and of my Oxygen GT AS shell in specific. It's about the weight of a windbreaker so it easily stuffs in your pocket, but it's also fully waterproof and windproof while still being very breathable. It's very good for truly rainy conditions and fast cold descents when wet. Note that the Oxygen GT is race cut, so if you're not, you'll want to go with a different model.
I've also been a long time Gore fan from my running days. I haven't tried Shower Pass and heard good things about their products. But I know you can't go wrong with Gore products. They spend a lot of money with R&D and everything they produce is well researched and tested. However its important as you say to pick the right product/line for the specific need.