Rain shell for a lady with a large bust?

I sort of have the opposite problem–way bigger in the hips than up top. However, Marmot Precip can come in XXL if you look on their website, which may accomodate her bust. Unless the jacket has a sharply indented waist area, anything is likely to fit like a plastic bag once the bust line is fitted, but at least the Precip may have enough room to move. I can't say it's outstanding in the waterproofness department, but it will work for the occasional summer shower.

Otherwise, the Dri-Ducks run BIG. Since her hips aren't huge (or you don't mention it that way) she may have better luck looking at men's jackets, and then just putting up with sleeves that are too long–which is sometimes fine, it allows you to tuck your hands inside the sleeves, which keeps them warmer and from getting that pruney effect from being wet for a long time. The North Face seems to run a bit more roomy, and I've managed to fit into Patagonia as well.

+1 to Diane's suggestions and also look at LL Bean's gear. Their rain jackets for the urbanite is pretty light weight. You don't necessarilly need to buy from the outdoor hiking section. Columbia has some good jackets as well.

I think she'd rather avoid getting a XXL- she usually wears a Women's M or L, usually a L for more athletic fit stuff. Problem has been a rain jacket that fits over her bust that isn't like a garbage bag. Especially now, as she's still nursing our 8 month old. Her shape is "balanced" as they they- shoulder width is the same as hip width.

I'll pass on the recommendation of Columbia and LL Bean- thanks to you both!

If you bought a larger jacket that fit her in the bust, you could take it to a tailor/seamstress who could add darts to the waist area.

To answer a Q you didn't ask, but stuck with me as a clever solution:

When my wife was pregnant with our first, she had a substanial wind-blocker fleece jacket by a local manufacturer. She knew it wouldn't fit when 7-. 8- and 9- months pregnant, so she had them stitch an extra panel about 10" wide with a zipper on each side. Like a "double-breasted" men's jacket, but instead of two rows of buttons, it had two zippers in the front and the extra strip increased the girth. Post-partum, she set aside the extra panel until the next pregnancy.

Maybe try a poncho or cape…..

In our local "Old-believer" community as well as FLDS and some Amish communities, women wear a dress that fits late in pregnancy and is worn with a tie to suck it in the rest of the time. (note: "the rest of time" is seemingly not very long, as they do get pregnant early and often).

Similarly, fishermen will put a belt on the outside of their waders to reduce the volume and loose fabric and to have a place for a sheath knife.

There are parkas that have that function through a interior drawstring. If at her waist, that could suck in the extra fabric of a parka large enough to accomodate her chest.