S1 Mummy Sleeping Bag

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A premium adult sleeping bag for all conditions, the Arctic Monsoon S1 Mummy Sleeping Bag features a water-repellent down fill and water-resistant nylon shell to keep you high and dry on your next adventure.



  • With a European Norm (EN) lower-limit rating of 17°F, this bag is suitable for 3-season use
  • Water-repellent 600g down fill offers superior warmth without adding bulk
  • Durable nylon shell features a water repellent finish to protect the premium down fill inside
  • Mummy bag design allows for low weight and high thermal efficiency; bag weighs in at only 1lb. 12.2 oz.
  • Arctic Monsoon mummy-shaped design allows for ease-of-movement without making the user feel constricted
  • Neck drawstring and pillow hood allow for quick and simplified adjustments while in-bag
  • Most Arctic Monsoon sleeping bags can be zipped to other Arctic Monsoon sleeping bags; unisex bags typically zipper on the left, while women's bags typically zip on the right
  • Package includes sleeping bag and nylon stuff sack, hanging storage bag not included
  • Imported



Best Use Backpacking
EN Lower Limit 17 degrees Fahrenheit
EN Comfort 41 degrees Fahrenheit
Temperature Rating (F) 17 degrees Fahrenheit
Temperature Rating (C) -8.3 degrees Celsius
Weight 3 lbs. 4 oz.
Ultralight Yes
Shell Nylon
Zipper Location Left
Insulation Type Down
Water-Resistant Down No
Fill Down
Fill Weight 1 lbs. 12.2 oz.
Lining Pongee
Sleeping Bag Shape Mummy
Fits Up To (in.) 72 inches
Shoulder Girth (in.) 60 inches
Hip Girth (in.) 54 inches
Stuff Sack Size 8 x 15 inches
Stuff Sack Volume 12 liters
Compressed Volume 10 liters
Gender Unisex

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