Rating: 5 / 5
This is my first 20 degree bag. It is not, however, my first 20 degree RATED bag. I've spent some cold nights in the 30's in some other 20 degree bags.
I've had this one down to 21 degrees in a hammock. On that occasion, I had a silk liner, a wool hat, wool long underwear, shirt, and pants on and was comfortable. At temperatures much higher than that, I use it like a quilt.
At 31 oz. it's a light bag. It comes out of the stuff sack and lofts to where it looks like there's someone in it.
The outer shell is water repellent which is good with a down bag. That's the main reason I got the silk liner. I don't want to wash the bag because I'm afraid it won't repell water afterwards.
Really, no complaints. It's a great bag.