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Details

  • Insulated with high-loft 650-fill-power Ultra-Dry duck down for warmth, light weight and compressibility; EN Lower Limit rated to 32°F/0°C
  • Ultra-Dry Down is a water-repellent polymer treatment applied to the 650-fill down; retains 60% more loft and absorbs 30% less moisture than untreated down
  • Baffle construction allows the down to remain fully lofted and keeps it from shifting
  • 30-denier shell fabric treated with a durable water repellent (DWR) finish and a 20-denier soft-touch, breathable lining
  • Semirectangular shape provides more room than a mummy bag while maintaining thermal efficiency
  • Full-length side zipper and foot zipper allow bag to be converted from sleeping bag to a duvet/down comforter; this also allows 2 Sea to Summit bags to be zipped together
  • Oversize draft tube backing the 2-way zipper keeps the warmth in and the cold out; zipper is backed by stiff, antisnag tape for smooth operation
  • Stitched hood panels provide structural support to enclose your head in colder weather, and a static draft tube runs around the hood to maximize warmth around your face
  • Differentially cut inner layer is smaller than the outer layer to create a consistent thickness of insulation that precludes cold spots
  • Large zippered interior security pocket is great for stowing a few essentials, alleviating middle-of-the-night fumbling and preserving battery performance in cold weather
  • Comes with an Ultra-Sil compression sack

Imported.

Many sleeping bags are rated for temperature by an independent testing protocol, the European Norm (EN) 13537. Each bag gets two ratings: a Comfort rating and Lower limit rating. The Comfort rating is the lowest temperature at which the bag will keep the average woman (or "cold sleeper") comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep an average man (or “warm sleeper”) comfortable. Everyone's body and sleep comfort is different, so EN Ratings are merely a guideline to help you compare products.

View all Sea to Summit Men's Sleeping Bags

REI membership

Specs

Best Use Backpacking
EN Lower Limit 18 degrees Fahrenheit
EN Comfort 30 degrees Fahrenheit
Temperature Rating (F) 18
Temperature Rating (C) -8
Weight
Long Left
2 lbs. 6 oz.
Regular Left
2 lbs. 2 oz.
Regular Left Wide
2 lbs. 7 oz.
Shell 30-denier nylon
Zipper Location Left
Insulation Type Down
Water-Resistant Down Yes
Fill 650-fill premium duck down (85% down/15% feathers)
Fill Weight
Long Left
1 lb. 3.4 oz.
Regular Left
1 lb. 1.6 oz.
Regular Left Wide
1 lb. 4 oz.
Lining 20-denier nylon
Sleeping Bag Shape Semirectangular
Fits Up To (in.)
Long Left
78
Regular Left
72
Regular Left Wide
72
Shoulder Girth (in.)
Long Left
64
Regular Left
60
Regular Left Wide
68
Hip Girth (in.)
Long Left
62
Regular Left
57
Regular Left Wide
63
Stuff Sack Size 7 x 16 inches
Stuff Sack Volume 10 liters
Compressed Volume 6 liters
Gender Unisex
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