Sierra Designs Mobile Mummy 800 3-Season Sleeping Bag - Women's 800 Fill DriDown, Women's Design and Fit Ultralight jacket hood fits comfortably snug around your face like the hood on a jacket Centrally placed, ventable 58" zipper is easier and more natural to operate Dual sliders can be zipped from the bottom for venting All openings on bag are reinforced with additional interior down baffling to prevent cold-air drafts