Having already bestowed rave reviews on the Mont Bell UL Spiral Down Hugger 1 Sleeping Bag a few years back, I was looking forward to testing out the new Mont Bell Down Hugger 900 sleeping bag. The Down Hugger 900 uses the same “bias-cut" technique to improve interior space as the Mont Bell UL Spiral Down Hugger 1 Sleeping Bag. “Bias Cut” sounds like a fancy-pants terms but it simply means that fabrics are cut in a way that utilizes the greater stretch in the bias or diagonal direction of the fabric. The gathered stitches are also elastic, which allows them to expand and contract as the sleeping bag moves with you when you change positions throughout the night. This flexibility creates a better contour for your body position. Keeping the 900 fill goose down closer to your body helps eliminate those drafty spaces.

Read the complete review of the Mont Bell Down Hugger 900 Sleeping Bag here.

“Bias-cut" and gathered stitches which are also elastic make this the roomiest bag out there.