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Big Agnes Blackburn UL 0 Down Sleeping Bag

$324.94 - $519.95

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You've been searching high and low for a warm sleeping bag that won't weigh you down on the trail, and it's a good thing that you're here because the Big Agnes Blackburn UL 0 Sleeping Bag is just what you need. Ultralight is the name of the game when it comes to this packable sleeping system, but Big Agnes still held on to the features that have made their System Bags famous in this design. A Flex Pad Sleeve means that this bag is compatible with sleeping pads 20-25 inches wide, and the streamlined silhouette maximizes the loft in every down feather stuffed inside. Speaking of down, this sleeping bag comes with plenty of it in the form of a water repellent Downtek, meaning that a water spill or excess condensation in your tent won't lead to a teeth-chattering night under the stars. Weighing in at under three pounds, the Blackburn is your new best friend for ultralight camping and backpacking in the shoulder season.


  • An ultralight sleeping bag built for backpacking trips in the spring and fall
  • Streamlined silhouette optimizes heat regulation
  • Flex Pad Sleeve stretches to conform to multiple pad sizes
  • Low profile cordlock lets you un-cinch the hood with one hand
  • Small, Regular, and Long bags fit 20" - 25" wide pads
  • Free range hood allows you to move your head comfortably
  • Rectangular shaped bag
  • Anti-snag zipper
  • 60" /152cm YKK #5 anti snag locking zipper - small bags
  • 65” /152cm YKK #5 anti snag locking zipper - regular bags
  • 70” /165cm YKK #5 anti snag locking zipper - long bags
  • Zipper Garage
  • Mate together left and right zip bags
  • No-draft collar, No-draft wedge, No-draft zipper
  • Interior fabric loops for sleeping bag liners
  • Exterior loops for hang drying or storage
  • Mesh storage sack & polyester ripstop stuff sack 

Materials and Construction

  • Nylon ripstop shell fabric with a water repellent finish
  • Soft and comfortable nylon lining
  • Flow™ construction increases thermal efficiency
  • 850 Fill DownTek Insulation - A Bluesign approved water-repellant down fill


  • Temp Rating: 0° F
  • Bag Size: Small, Regular, or Long
  • Fits Up To: Small - 5'5"; Regular - 5'10"; Long - 6'6" 
  • Pad Size: Small - 20-25" "x 66"; Regular - 20-25" x 72"; Long - 20-25" x 78"
  • Bag Weight: Small - 2 lb 6 oz; Regular - 2 lb 10 oz; Long - 2 lb 14 oz
  • Insulation: 850 Fill
  • Compressed Size: Small - 5.5" x 6.5"; Regular - 6.5" x 7.5"; Long - 7.5" x 8.5"
  • Stuff Sack Size: 9" x 20"