I wear this here and there and everywhere. Its the perfect mix of lightness so I can layer, and its decent in rain, too. I bring a waterproof shell when I am out backpacking though, this wouldn't be tough enough. But great for light hikes light rain and everyday wear. I'm a medium and the medium was perf for me. Hits the curves just right.
My wife is a picky when it comes to gear like this. She is a tiny person who usually wear xs in size and some brands are not small enough for her. however, Patagonia appear to be right fit for her. Though she owns more of other brands, not into Patagonia, she approves of this one. FYI, she is 5 feet 95 lbs....BTW, this jacket is fairly cheap for what it does....I have a make version. :)