Don't know why I would think this is to stop rain. Maybe the description could be a little clearer although it handles light precip ok if you are moving enough it will dry. It's made for wind though, which works very well in wind and snowstorms at 11,000 feet when I have to run around as a National Parks Ranger which I have been doing the last few years. Usually, you have enough fleece or other insulators but this stops wind well so it doesn't go right through you. Side zips are very handy for interior access to a sidearm or bear spray or venting, although it breathes sweat out 500 times better than a waterproof/breathable would.
No rain protection whatsoever. Not sure that it's any better than just a regular windbreaker in regards to rain.
I like it, never wore it in the rain so I'll defer to other reviews that did. Great top layer with light winds and cold temps. Also very lightweight and breathable for use over a polo shirt when transiting inside/outside buildings during winter. Easily packable in luggage.
Wore it once in a moderate rain and got soaked it was like I wasn't wearing a jacket
I wore this in average rain and the rain comes right through the hood. It offered adequete protection from the wind and rain but I got wet because rain comes in right through the hood.