.
.
"I own a Blue Kazoo down bag from The North Face which is rated to +20 degrees F. Instead of buying a new down bag for colder conditions, I purchased the Mountain Hardwear upgrade which is a +40 deg F bag by itself, but can be zipped into another bag to give an additional 25 deg of warmth. My Blue Kazoo with the upgrade is now rated to -5 deg F. The zippers work great and allow for the additional width of the upgrade bag. The combined weight of both bags is about 4.5 lbs."
Many people ask us to recommend different types of gear. Instead of us deciding what gear is good or not, we let the backpacking community decide. The reviews on
have been submitted by our viewers. Some reviews are positive and some are negative. If you don’t agree with a review, feel free to