Well, I sent the pez sweater back. It was really frumpy on me. The M fit good over my shak in the shoulders and bust, but the sleeves, hip, and overall length were all much too long/big. But I think the biggest problem was that it really lacked styling. One of the reviewers said it fit like a bathrobe and I have to agree with that description, or maybe a potato sack would also be accurate. It just wasn't something I could feel good wearing.
On a more positive note, I did pick up a brooks brothers merino long cardigan at one of their airport stores, and while its not as heavy as the pez, it does the job of insulating the raincoat and looks much nicer when I take the raincoat off! I'd show a link but its only sold at the airport stores (kind of weird but true). If its really cold where I am going, I'll just take my primaloft coat, so maybe it was just a dumb idea to try to make one coat do everything.