Great versatile jacket - packed on a winter trip to Chile and I wore this most everyday over a few layers (temps ranged 50's-60's).  When I tried it on at home, I was afraid it might not "breathe" enough because there is no venting, but I am happy to say I was wrong, it was great.  Packed it in my carry-on tote bag and it popped out presentable immediately (not super crinkly looking).  I can attest that it was great in high winds.  It's thin, but it will be perfect for fall weather before the bigger poofy coats come out for winter.  Style goes well with jeans or with dressier casual outfits - the versatility is what tipped me over the edge on this jacket and convinced me to order it. It's hard to find a packable rain coat that doesn't look like it came from an outdoor/camping store.

Rain: Used the jacket while touring outside in the rain all day and it was great. Since I was in a dense tourist area, it was easier to navigate through the crowds without my umbrella, so I used the hood for the first time. Posted photos of the hood, hope it helps some. The hood stayed up perfectly, and there are snaps worn under the chin to help keep it up, but I could see how it might blow back if a big gust of wind came at you.

Sizing: I debated between ordering a medium or large.  After reading one person comment on another site about the arm holes being on the small side, I opted for the large.  After receiving the jacket and trying it on, I disagree about the arm holes being anything but normal.  Jacket is true to size, so order your usual size.  Personally, I was glad I sized up as the extra space allowed me to wear multiple layers underneath and still be able to zip up (I am a medium at my waist but large chested).  Plus the adjustable waist tie in the back helps to keep it from looking frumpy and too big everywhere else.

Pockets are nice and deep - I was able to stash a small camera and still have room for my hands.  The depth allowed me not to worry about anything falling out when seated, in addition they are all zippered which is a nice touch.

Opportunity for improvement: wish there was an interior pocket to stash a passport away from pickpockets.

Overall, it's a great jacket to cover your bases.  The style versatility allows this to be the only jacket you bring on trips if you are packing light, but I look forward to using it around town too.