Award Winner - Backpacker Magazine Editors' Choice Award 2011
There are plenty of reasons as to why the Marmot Plasma 15 Degree won Backpacker Magazine's Editor's Choice Award, not the least of which is its impressive warmth-to-weight ratio. At under 2lb, it is the new gold standard for 15 degree bags. Utilizing 900+ fill down, it traps all your warm air near your body and can compress down to almost nothing. The vertical baffle system (aka, Insotect Flow™) reduces weight and allows your body heat to easily/efficiently transfer to your extremities, with an insulated draft tube which prevents cold from leaking through the full-length zipper. If you're looking for one sleeping bag to get you through the whole year, this is the one you need (if you're looking for more than one, this should still be at least one of them).