Guy's jackets tend to be cut narrower in the hips, so it depends on the woman's build and how that brand's sizes tend to run. My Marmot's stuff is all women's.

I have some guy's jackets and coats because, like you said: I'm not wearing them to the office. For walking my dog or around a campground, a perfectly tailored fit is not a high priority -- pockets, material and color are.

I like my Dri-Climes loose enough to allow wearing over a lightweight fleece top.

Here's an example of a man's jackets that I have because there was not a woman's version (and because I got this one half-off). Great for dog walks in mild temps and for bumming around camp where I am especially fond of having numerous pockets. As the description below states, it's a reproduction of a 1956 safari-style jacket. Lotsa pockets.

Explorer Jacket
http://www.llbean.com/llb/shop/63073?pag...4-sub2&np=Y

"Inspired by our 1956 Bush Jacket, it features 10 functional pockets – six outside and four inside – and an improved vented back cape that keeps you cool in hot climates without allowing weather to penetrate. Durable cotton canvas is enzyme-washed for a soft, weathered appearance and treated to be water resistant. Lined with lightweight, fast-drying mesh to help air circulate and keep you dry. Gusseted back allows for a natural, comfortable fit across shoulders. Zip front and drawcord waist."