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Big Agnes Star Fire UL Sleeping Bag: 30F Down

$469.95 - $499.95

Star Fire UL Sleeping Bag

A little over a single pound, the Star Fire UL is officially the lightest, most compressible sleeping bag from Big Agnes. Perfected for long backpacking trips, the bag's 850-fill down insulation has the highest fill rating for lofty compression, and Big Agnes treated it with DownTek for hydrophobic properties that help the down retain its loft in moisture-riddled climates. The Pertex Quantum shell is also water-resistant, and highly windproof to block brisk breezes as you snooze. Oversized draft tubes and collars make sure you don't feel a breeze, and the single-handed hood adjustment helps you hunker down when the winds really howling.
  • The lightest, most compressible sleeping bag from Big Agnes
  • 850-fill DownTek treated to resist moisture and stay warm
  • Pertex Quantum shell is water-resistant and windproof
  • Minimal zipper with an oversized draft tube and collar
  • Single-handed hood adjustment is easy to use at night
  • Item #BAGZ289

Responsible Collection
Pertex Quantum (100% recycled nylon ripstop)
850-fill DownTek
Max User Height
[regular] 6ft, [long] 6ft 6in
Shoulder Circumference
[regular] 60in, [long] 62in
Hip Circumference
[regular] 54in, [long] 56in
Foot Circumference
[regular] 36in, [long] 38in
Draft Tube
Fill Weight
[regular] 12oz, [long] 14oz
Storage Sack
Stuff Sack
Stuff Size
7.5 x 15in
Claimed Weight
[regular] 1lb 7oz, [long] 1lb 9oz

Tech Specs

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Star Fire UL Series Sleeping Bags

These technical, ultralight bags are designed for adventures where every ounce counts, each nook and cranny in your pack is accounted for, and you depend on the performance of your sleeping bag like you would a harness, helmet, or beacon. The "Fly Creek of sleeping bags," our Star Fire UL series features the ultimate 850 fill power DownTek™ water-repellent down, and are built with a superlight, high-tear strength shell that also protects the inside footbox. Body-mapped baffle construction optimizes thermal efficiency creating the lightest, highly compressible bag for your most remote of overnight adventures.