User Review: Marmot Men's Helium
Fill: 900 fill down
Temperature Rating: 15 F
As the five star rating indicates, I seldom leave home without this bag. I've used it in temperatures hovering around zero and all the way up to 35 degrees. Invariably I'll throw this one in the car and make a final decision at the trailhead as to which to carry, but the Helium is almost always it.
It compresses down to the size of a cantaloupe using a compression bag, weighs next to nothing at just slightly over two pounds, and generally is warm enough for anything that I encounter.