Love my Feathered Friends down bag. It's less than 2 lbs.. good to 20 degrees for real. Costs a small fortune but I'll still be using it in 20 years.... and it's way overkill for quite a bit of any tour.. I can alway open it up or sleep on top if and when it gets to warm. I'm a big fan of being to warm than to cold. YMMV.