Klymit KSB 0 Degree F XL Sleeping Bag Grey Orange   All the great features of the KSB 0™ with additional width in the chest. The KSB 0 Extra Large’s 650 fill power down top and synthetic fill bottom provides an exceptional warmth-to-weight ratio. When the temperature drops below freezing and into single digits, you need a bag that eliminates excessive air pockets to achieve lasting warmth through the night. Flexible Stretch Baffles keep fill next to your body and stretch when you move, while Length Locks™ allow you to adjust the bag to your height, creating a comfortable cocoon of fill around your feet. Additionally, anti-snag, two-way YKK zipper opens from the bottom or top to easily control the flow of air. Klymit KSB 0 Degree F XL Sleeping Bag Grey Orange