Ever heard of an elephant's foot?
http://www.backcountry.com/the-north...limashield-neo
1.15lbs, and this ain't no 45 degree bag.
Ever heard of an elephant's foot?
http://www.backcountry.com/the-north...limashield-neo
1.15lbs, and this ain't no 45 degree bag.
From the description:
"This half bag only covers your lower half but is equipped with warm PrimaLoft Infinity insulation and a waterproof breathable HyVent DT shell, so your legs are just as warm as your upper body when you sleep wearing a puffy insulated jacket."
Montbell Down Tec pants weigh 14oz and can be worn while doing camp chores, and with full side zips can be donned/removed without removing boots/snowshoes/skis.
IMVHO the Elephant's Foot is not something I would want to depend upon as an element of my sleep system for multiple nights in very cold (0°F and below) weather.
Have you used it? Perhaps I am short-changing it...
I am thinking it's marketed as a bivouac bag for mountaineering. You'll need some heavy duty parkas, headgear and mittens to survive a night at altitude. I would be concerned after a couple of uses the interior would be soaking wet. Also you'd need a sheltered location to minimize wind chill.