I had my hands on a Filson Mackinaw vest the other day... wool, unlined, heavy, definitely felt quality, and a straight bottom to it. Ideal with a kilt.

http://www.filson.com/products/macki...est.10055.html

sadly the one I had my hands on had a couple of holes in it and I couldn't decided if they were just holes or moth nibbles... so, didn't take the chance.

Oh! and it's made in the USA...