I bought one for myself and one for my girlfriend and we put these to the test. Spent five days in Denali National Park backcountry with 24+ hours straight of rain, and cold windy nights. We were cold and wet all day long and the only solace was getting into the bags at night. They kept us warm and dry- we even had to unzip the bag to cool off a couple of times! They compress nicely and are a decent weight. Overall I highly recommend.
                    
This review was written in the old system and had content requirements that are different than reviews written today.