The Mammut Protect Down 0 Sleeping Bag is a zero degree down bag for mountaineering. Restorative sleep is the focus of this sleeping bag, making sure you're warm, comfortable and not disturbed through the night. The ample amounts of 700 fill power down doesn't just warm in extreme environments, it packs down incredibly small with the included stuff sack. The bag is treated with a PFC-free durable water repellent finish to shed light moisture and resist tent condensation while the interior hood Features a super soft, incredibly quiet fabric to reduce noise and increase comfort through the night. Space for your shoulders while still maintaining a mummy shape and a center-zip for easy exit, entry and temperature control. Shhh, the special zipper is even quiet. Features of the Mammut Protect Down 0 Sleeping Bag Restorative sleep thanks to a newly developed sleeping bag shape Intuitive climate regulation with a central 2-way zipper Comfortable, soft material in the hood reduces noise and increases comfort Including deep sleep mask and earplugs to reduce light and noises PFC-free DWR treatment Lining made from 100% recycled polyester 700 cuin fill power with ethically procured and certified RDS down Easy-to-use magnetic closure on the Insulation collar Improved YKK zipper prevents jamming of material Insulated covering along the zipper to protect from cold bridges and enhance climate comfort Insulation chamber around the hood opening to protect from cold and wind Drawstring for easy adjustment of the hood and Insulation collar Revised anatomical foot box for greater comfort without extra weight Zipper garage reduces cold Areas at the end of the zipper Internal pocket to store