The KSB 0 is a compact 0 degree synthetic sleeping bag that is a comfortable, complement to any of the Klymit camping pads. This sleeping bag is designed to keep you warm and comfy during cold nights camping. The foot box is overstuffed with five opposed baffles to lock in foot warmth. The middle of the bag is sewn with flexible baffles that hug your body and eliminate air movement, and yet still allow you to move and shift within the bag. The mummy hood utilizes an adjustable neck collar to minimize heat loss during cold nights.