Does what it says on the packet,
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This review is from: Gore Men's Phantom 2.0 So Jacket (Sports Apparel)
Windproof? Definitely. Shower proof? Tried and tested - definitely. Light-weight, versatile, easy to maintain, looks smart. I have worn this all winter with only a base layer underneath, temperatures down to 0 degrees C and as high as 16 degrees, no problem. Admittedly I felt warmer with a middle layer on but this was only a comfort thing that I tried on one of the coldest days of the winter, while moving it's fine with just two layers.
The only things I have found are that I do get a bit sweaty across the shoulders and if I have tools or a GPS in a rear pocket it gets a bit damp, but I suppose that is an indication of the breathable material doing its job.