Making some final gear purchases before our first winter excursion and would like to know what everyone thought of this as part of a layering system mainly for around camp/sleeping. First of all, does anyone know what it weights? My base layer would be a Cap 3 shirt, followed by a fleece of some sort, possibly this one, and then my new Alpine Down jacket (NOT the light). Lows are supposed to be 20 degrees.
here is what I had in mind: http://www.rei.com/product/724063
Thoughts?

