I recently received my wool longhunter vests from Two Tracks and this thing is AWESOME!!! The craftsmanship that went into the vests is amazing and I can't say enough about his customer service.
I have a hard time imagining cold getting through this bad boy. In fact, I honestly think that cold is scared of this thing. My neck of the woods has been in the grips of a pretty severe winter pattern (just like most of the country) and 3 days after I receive my vest in the mail the weather breaks and it's almost 60 degrees. Coincidence, I think not.
Anyway, if your looking for a high quality wool vest look no further.
p.s. I plan on posting pictures of my vest as soon as I get my camera back from my sister.