User Review: Western Mountaineering Big Horn Super MF (MicroFibre)
Fill: 750+ fill down
Temperature Rating: -20 F
Weight: 3 lb 13 oz (6')
Price Paid: $455 (6' 6")
Was out Saturday at 7 below and was WARM all night. (And isn't that the real function of a winter bag?)
Not cheap, but fits in my sleeping bag section of my pack, (in a compression sack) so I don't need a new, bigger, pack. Room for me, my boot liners (at the bottom), and three water bottles.