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BIG AGNES Star Fire UL 20 (850 DownTek)

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458,33 €

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BIG AGNES Star Fire UL 20˚ Down Sleeping Bag - is technical, ultralight mummy bag designed to excel in all conditions for adventures where every gram counts.

Star Fire ultralight series features ultimate 850 fill power DownTek™ water-repellent down and built with a superlight, high-tear strength shell Pertex® Quantum that protects the insulation from moisture while providing lightweight durability.

Body mapped baffle construction optimizes thermal efficiency for creating a light, highly compressible bag for your most remote of overnight adventures. The internal hood drawcord gives you a secure, cozy fit when cinched and the low-profile cordlock lets you uncinch the hood with one hand. Contoured hood baffles cradle your head for a more comfortable fit with an oversized interior anti-draft collar to keep you cozy.

The Star Fire Ultralight traditional mummy shape allows for lightweight and increased thermal value. Vertically structured sidewalls integrating contoured baffles trap heat closer to the body. The ergonomic foot-box construction provides more loft and warmth.

The anti-snag zipper allows for a smooth, quick zip. The zip has well designed zipper garage and is insulated with two draft tubes to eliminate cold spots and prevents heat loss along the zipper.

Integrated interior fabric loops enable you to use the bag with a liner (sold separately) and hold it in place. The streamlined exterior loops let you easily hang the bag to dry or in storage. Storage sack & stuff sack included! 

The Star Fire Ultralight is the bag you need just when you think you can't fit anything else in your pack. You'll want to find room for those ultralight, ultrasoft, technical mummy bag to keep you warm and dry on any type of adventure.      
Star Fire 20 temperature ratings

Star Fire UL 20˚is made in:

  • SMALL - fits up to 165 cm / 5’ 5”
  • REGULAR - fits up to 183 cm / 6' 0" 
  • LONG - fits up to 198 cm / 6' 6"

Each Big Agnes Star Fire UL 20 Degree sleeping bag includes a storage sack and a stuff sack. Works with any pad size or style.


  • Shell and lining are Pertex® Quantum nylon rip-stop 
  • 100% recycled Pertex® Quantum uses a tightly woven structure made from incredibly fine yarns, making a light and soft fabric that allows insulation to fully loft and maximize thermal efficiency
  • 850 Fill Power DownTek™ (US Method) repels water while maintaining insulating value - bluesign® Certified PFOA and PFOS free water repellent chemistry
Downtek - water repellent down


  • Traditional mummy shape allows for lightweight and increased thermal value
  • Insotect Flow™ vertical baffles contour to your bod
  • Body mapped baffle construction optimizes thermal efficiency
  • 3-D anti-snag draft tube prevents heat loss along the zipper
  • Vertically structured sidewalls integrating contoured baffles trap heat closer to the body
  • Contoured hood baffles cradle the head for a more comfortable fit
  • Oversized interior anti-draft collar 
  • Ergonomic foot-box construction provides more loft and warmth 
  • Low-profile cordlock lets you un-cinch the hood with one hand
  • Insulated tube along upper hood opening seals out drafts when cinched 
  • Minimal zipper minimizes weight and reduces cold spots
  • 40"/102cm YKK #5 anti-snag zipper for a smooth, quick zip 
  • Zipper Garage
  • Interior fabric loops for sleeping bag liners
  • Streamlined exterior loops for hang drying or storage
  • Storage sack & stuff sack included 

BIG AGNES Star Fire UL 20˚
Data sheet
Weight482 g Regular
Warranty2 years
Made inChina

Bag Weight794g / 1lb 12oz879g / 1lb 15oz964g / 2lb 2oz 
Fill Weight 425g / 15oz482g / 17oz539g / 19oz
Compressed Bag Size 17 x 18cm / 6.5" x 7"17 x 19cm / 6.5" x 7.5" 18 x 19cm / 7" x 7.5"
Stuff Sack Size 19 x 38cm / 7.5" x 15" 19 x 38cm / 7.5" x 15"20 x 45cm / 8" x 17.5"

Measurements Star Light 20

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  • 30 days return policy
    30 days return policy
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    30 days return policy

    You can return the product for any reason within the 30 days.

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    Express delivery
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