A bag you can trust to get you through single-digit nights. The KSB 0'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.
The size of this product is L.
"It’s stellar. It’s wide and long enough for a big boy (I’m 6’0, 225 with broad shoulders). I was in this bag in the Mendocino forest, minding my own business, when it snowed on me in the middle of the night. Never even knew it was that cold outside until I felt the snow hit my face and the down pour woke me up. Must’ve been raining/snowing for a while because EVERYTHING was soaking wet except me inside this bag."