Kathy R.wrote a review of Patagonia Nano-Air Jacket - Women's on October 11, 2015
Familiarity: I've used it several times
Fit: Runs small
I like it and am keeping it in spite of fit issues. It is light, warm, and stretchy, as advertised. Be aware, however, that slim fit means that short curvy women like me (and I don't mean fat but I am muscular and do have a butt) will fit properly in the top but not in the bottom. It is snug across the bottom. Also, I'm a petite, so the length is down to the widest part of my butt (actually down to the top of my thighs), which may be part of the problem.
The cochineal is a rusty red.
The permeability means that some wind does come through. It seems about 90% wind resistant.
Don't know about water resistance yet.
I like it a lot but may have to shorten it in order to fix the fit issue. Also I have an ongoing gripe about zippers going up to the chin. I do not have a short neck (according to my fit on a cervical collar) but the zipper seems to be in the way of my chin. Also the 'stacked zipper' problem once you start layering things becomes annoying. Please, designers, change the zipper design at the collar.
Finally, I like it at the $100 price point, although it doesn't really have enough functionality to qualify as a good value at that price (one-way zipper only, no hood, not waterproof, zipper not waterproof, no adjustable or inner cuffs).
Yes, I'm picky. I'm a Nordic ski patroller who is out in all weather including rain, sometimes into the night for search and rescue, sometimes on a snowmobile. I expect the best from Patagonia and I don't see that this jacket meets that standard.