User Review: MontBell U.L. Super Stretch Down Hugger #3
Fill: 725 fill down
Temperature Rating: 32
Weight: 1 lb 11 oz
Price Paid: $240
This is an excellent bag--as light as many summer-only bags, but good down to freezing. My long weighs 1 lb 11 oz, and I have had it down to 32 degrees, in just shorts and a t-shirt. It is so roomy and comfortable, I know if I put on my long underwear and down jacket, it would be good to 20 or so.
My previous bag, a REI sub-kilo, is rated to 20, but is cut so slim that the down was always compressed by elbows or whatever, and I was cold well ABOVE freezing. I got a TNF bag expander which solved that problem, but then the weight was close to 3 pounds. This Montbell is much much lighter, and warmer too. The system they have of many individual pockets of down (read their catalog) means you don't wake up at night with a thin spot over you due to the down shifting.
I know there are other bags out there -- Marmot, Western Mountaineering, that are also light and warm, but they are cut pretty tight...if you don't sleep like King Tut, if your elbows push out a bit at night, you need the Superstretch. BTW, I am not big, 6 ft and 170 lbs, but do sprawl a bit when sleeping.
Only complaint, their very lightweight, close woven nylon, does not seem to be as breathable as some of my older plain ripstop nylon bags. But it's no worse than Pertex.