two track mummy pad 2"
Used this with a big agnes hahns peak bag on a recent 3 day backpacking/camping trip. It is a little heavy for backpacking but I am not doing 15-20 miles in the snow in zero/sub-zero weather. The temps got to -6 Fahrenheit on the coldest night and I felt no cold or draft from the ground whatsoever. I did not need the closed cell foam pad and the dog got to sleep on it (although he wanted to sleep in the snow and did not need anything except his northern breed coat). I also found the bag to be very comfortable with the big agnes bag. Gave it four stars just because it is a little heavy. Although this is to be expected in cold weather I would still like the best of both worlds.