Big Agnes Bellyache Mountain SL 17

Priced: $299.94 - $319.95
Big Agnes Bellyache Mountain SL 17
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Big Agnes Bellyache Mountain SL 17 -

Delivering the all-weather reliability normally associated with synthetic insulation and the lightweight, compressible performance of down, the Big Agnes Bellyache Mountain SL 17 Degree sleeping bag is a high-performance option for 3-season backpacking.


  • No-draft collar seals around neck to keep cold air from sneaking in


  • Insotect Flow Construction
  • Mesh storage sack & nylon stuff sack
  • Nylon rip-stop shell fabric
  • Interior fabric loops for sleeping bag liners


  • Traditional style mummy shaped bags designed without the integrated pad sleeve
  • No-draft wedge insulates the connection between the bag and pad


  • No-draft zipper tube insulates along the length of the zipper
  • 700 Fill DownTek insulation


  • 70"/178cm YKK #8 zipper
  • LEFT OR RIGHT ZIPPER? When you are in the bag, on your back, the right zip will be on your right side, left zip on your left side


  • Left and Right bags can be mated together to form double wide bag
Mountain Gear
For those that prefer a traditional down mummy bag on late season trips, it doesn't get better than Big Agnes' Bellyache Mountain SL +17 Down Bag.

Traditional Mummy bags are built for performance. Big Agnes is proud to introduce the most technical old-school sleeping bags ever! This bag is insulated with DownTek™ water repellent down and constructed with Insotect Flow™ patented technology. DownTek™ transforms down into a water repellant, anti-microbial and anti-bacterial insulation material. Even in the wettest of conditions, DownTek™ repels water while maintaining loft, insulation value and breathability. The mummy shape and lightweight materials will get you wherever you want to go, fast and dry.

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Bag Shape:Mummy
Draft Collar:Collar
Fill Material:700 Fill DownTek
Fill Type:700 DownTek™
Fits to Girth:Regular: 60" Long: 62" Extra Long: 63"
Fits to Length:Regular: 5' 10" Long: 6' 6" Extra Long: 6' 10"
Foot Dimension:36 inches
Hip Dimension:54 inches
Item Weight:Regular: 2 lb 7 oz Long: 2 lb 10 oz Extra Long: 2 lb 13 oz
Liner Material:Nylon Taffeta
Other:Stuff Sack and Storage Sack Included
Packed Size:Regular and Long: Stuff Sack size of 8" x 17.5", Compressed size of 8" x 8.5" Extra Long: Stuff Sack size of 9" x 20", Compressed size of 9" x 10"
Recommended Use:Lightweight 3-Season Backpacking and Camping
Shell Material:Nylon Rip-stop w/ Nylon Taffeta Bottom
Shoulder Dimension:60 inches
Storage Sack Included:yes
Stuff Sack Size:Reg & Long: 8 x 17.5 in / 20 x 45 cm
Stuff Sack Volume:8x17.5 inches
Temperature Rating:17 Degrees F
Weight:39 oz
Zipper Length:3/4
Zipper Side:Left
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