Comfort (EN 13537:2012): -1 °C Limit (EN 13537:2012): -7 °C Extreme (EN 13537:2012): -22 °C Mammut Perform Down Bag. Sleep to recover. Sleep as comfortably as in your own bed. The sleeping bag concentrates on natural sleeping requirements and focuses on noise, space and temperature: head area made from a special material that prevents irritating rustling noises. Sleeping bag design based on a natural sleeping position for sufficient space. Central zipper for optimum climate regulation. Perform Down Bag. The performance-oriented sleeping bag for restorative hours. Warm collar: Yes 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 j