Mammut - Protect Fiber Bag -18C - Synthetic sleeping bag. Design: mummy sleeping bag|Inserts: 100% polyester|Membrane: 100% polyurethane|Other material information: waterproof membrane|Sustainability: fabric certified as bluesign APPROVED|Sustainability: PFC-free|Sustainability: contains Fair Wear certified fabrics|Sustainability: contains recycled materials|Closure: zip garage|Closure: full length 2-way front zip|Closure: draught tube over zip|Closure: with chin guard|Comfort rating: -10 °C|Lower limit rating: -18 °C|Extreme rating: -40 °C|Season: 4-season|Extras: valuables pocket|Extras: incl. stuff sack|Extras: adjustable hood|Extras: draught collar|Misc: Deep sleep mask; Earplugs|Design: Mummy|Comfort rating: -10|Comfort rating grouped: Below 0°C to -10°C|Sustainability: PFC-free|Sustainability: Fair Wear|Sustainability: Recycled Material|Sustainability: bluesign APPROVED