I have been looking into the Snugpak. Under 2 lbs, some models go down to 32F(0C), packs to 6"x6"(16cmx16cm). Priced well under 200usd, some models around 130.00. Also add a silk liner to get another 5-7 degrees. I feel the important aspect for a touring bag is packability. A 1/2 pound one way or another is no big deal but the ability to stuff it easily into your pannier is important. Charlie