Family Owned & Operated  |  Free shipping on ALL orders $50+  |  Lowest Price Guarantee


Your Cart is Empty

Big Agnes


Big Agnes Blackburn UL 0° 850 DownTek Sleeping Bag

The Blackburn UL 0 is one of the most technically designed Big Agnes System bags, using our full pad sleeve design, a very durable nylon rip-stop shell fabric, and super cozy 850 fill power DownTek™ water repellent insulation. This bag combines ultralight versatility with a long line of packable creature comforts. Whether you're a 3/4 length-pad-carrying, fast fly tent-gram-counter or just gearing up for a cold weather hut trip where weight and packed size in important, this is the go-to bag for you.

  • Design improves connection between pad sleeve and bag providing a roomier sleeping space without adding bulk
  • Sculpted contour allows the bag to drape around you, increasing insulation performance
  • Free Range Hood design gives you the freedom to lift your head while snuggled in the hood
  • Low profile cordlock lets you un-cinch the hood with one hand
  • Stretch fabric panel beneath hood creates a designated pillow pocket
  • DownTek™ water repellent down repels water while maintaining insulating value
  • Zipper Garage 
  • Mate together left and right zip bags within a series
  • 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 & nylon stuff sack
  • Superlight Nylon rip-stop shell fabric with high tear strength and a water repellent finish 
  • Nylon Taffeta lining 
  • Insotect Flow™ construction
  • Tapered vaulted foot box creates wiggle room for your feet with out creating large cold air pockets 
  • 850 fill DownTek™ water repellent down 
  • Integrated full pad sleeve
  • Rectangular shaped bag

Bag Weight Small: 2lb 8oz / 1.13kg / Reg: 2lb 12oz / 1.25kg / Long: 3lb / 1.36kg
Fill Weight Small: 21.5oz / 610g / Reg: 23.5oz / 666g / Long: 25.5oz / 723g
Compressed Bag Size Small: 6in x 7in / 15 x 18cm / Reg: 7in x 8in / 18 x 20cm / Long: 7in x 8in/ 18 x 20cm
Stuff Sack Size Small: 9in x 20in / 23 x 51 c/ Reg: 9in x 20in / 23 x 51 cm / Long: 9in x 20in / 23 x 51cm



Sign up for Aventuron emails