Pluton UL 40

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Built for minimalist gram-counters with the highest gear standards, the Big Agnes Pluton UL 40° is a highly compressible sleeping bag filled with an incredibly lightweight and packable 850-fill DownTek™ insulation and finished with a PFC-free water-repellent coating. It'll keep you warm and your pack light, whether you're backpacking, bikepacking, or on any ultralight adventure.


Big Agnes
Bag Style:
Total Weight:
Regular: 16 oz
Long: 19 oz
Total Fill Weight:
Regular: 8 oz
Long: 10 oz
Compressed Bag Size:
Regular: 4 x 5 in.
Long: 4.5 x 5 in.
Stuff Sack Size:
Regular: 6 x 10 in.
Long: 6 x 10 in.
Max User Height:
Regular: 6 ft.
Long: 6 ft. 6 in.
Shoulder Girth:
Regular: 59 in.
Long: 62 in.
Hip Girth:
Regular: 53 in.
Long: 56 in.
Foot Girth:
Regular: 36 in.
Long: 39 in.
Other Features:
  • Highly compressible, crazylight minimalist mummy bag for your fast and light adventures
  • PFC-free water repellent coating keeps you dry without the use of harmful chemicals
  • Minimalist hood with drawcord
  • Low-profile cordlock lets you uncinch the hood with one hand
  • Full-length zipper provides easy temperature regulation, and can be fully unzipped to enable the bag to be used as a quilt
  • Left zip, 70" / 178cm YKK #3 locking zipper
  • Ergonomic footbox construction provides more loft and warmth
  • Two-way zipper
  • Zipper garage
  • Streamlined exterior loops for hang drying or storage
  • Storage sack & stuff sack included
  • Shell and lining are ultralight nylon ripstop with a PFC free DWR finish
  • 850 fill DownTek™ repels water while maintaining insulating value - bluesign®-certified PFC-free water repellent chemistry
  • 70 in. / 178 cm YKK #3 zipper

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