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Big Agnes Spike Lake -9 Down Sleeping Bag

Traditional down mummy bag that delivers high value and performance in a lightweight bag. Ideal for backpacking or camping adventures, but versatile enough for couch surfing and car camping.

They are insulated with Downtek™ and use baffle construction for efficient heat distribution. Rated to -9 deg celsius.

  • Traditionally insulated bags designed without the integrated pad sleeve found on Big Agnes System bags
  • Designed to decrease weight and size, while increasing thermal value using the traditional mummy shape
  • Contoured hood features a draw cord and cord lock for easy adjustment
  • 65”/165cm YKK #8 zipper - regular and long bags
  • Interior fabric loops for sleeping bag liners
  • Mate together left and right zip bags
  • Mesh storage sack & nylon stuff sack
  • No-draft collar and No-draft zipper
  • Shell fabric is breathable with water repellent finish
  • Exterior loops for hang drying or storage
  • 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
  •  Nylon rip-stop shell fabric
  •  Nylon taffeta lining
  • Baffle Construction 
  • 600 fill DownTek™ water repellent down
  • Rated -9 deg Celsius
  • Regular
  • Left Hand Zip
  • Color Flint/Navy 
  • Fill Type 600 DownTek™ 
  • Fill Weight 609 g 
  • Bag Weight 952 g
  • Shoulder Girth 152 cm 
  • Hip Girth 137  cm
  • Foot Girth 391.4 cm 
  • Stuff Sack Size M 20.3 cm x 44.5 cm 
  • Compressed Bag Size 21.6 cm x 21.6 cm