Big Agnes Lost Ranger 15 Down Sleeping Bag

Big Agnes Lost Ranger 15 Down Sleeping Bag


The Big Agnes Lost Ranger 15 Down Sleeping Bag offers warmth, compressibility and the Big Agnes System bag design. Big Agnes redesigned their Classic Series bags to combine a roomier semi-rectangular shape with a narrower integrated pad sleeve to allow you to roll more freely and sleep more comfortably. The 650 fill Downtek water resistant down repels water to maintain loft and insulation value while Insotect flow construction ensures uniform insulation coverage and eliminates cold spots. The Free Range Hood Design and low profile cord lock allow you unrestricted movement while staying hooded, but also give you the ability to release the hood with one hand. Additional features include a tapered vaulted foot box to avoid cold pockets and a stretch fabric panel pillow pocket. 


  • 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
  • Tapered vaulted foot box creates wiggle room for your feet with out creating large cold air pockets
  • Stretch fabric panel beneath hood creates a designated pillow pocket
  • DownTek™ water repellent down repels water while maintaining insulating value
  • Integrated full pad sleeve
  • Rectangular shaped bag
  • Lightweight mini rip-stop micro fiber for high performance and a soft feel
  • 70”/178 cm YKK #8 zipper
  • 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 & nylon stuff sack
  • Pad sold separately - Rectangular shape recommended 

Materials and Construction

  • Polyester mini rip-stop microfiber shell fabric with a water repellent finish
  • Polyester Taffetta lining
  • Insotect Flow™ construction
  • 650 fill DownTek™ water repellent down 


  • Temp Rating: 15° F
  • Bag Size: Regular, Long, or Wide Long
  • Fits Up To: Regular - 5'10"; Long and Wide Long - 6'6" 
  • Pad Size: Regular - 20" x 72"; Long - 20" x 78", Wide Long - 25" x 78"
  • Bag Weight: Regular - 2 lb 12 oz; Long - 3 lb 0 oz; Wide Long - 3 lb 7 oz
  • Insulation: 650 Fill DownTek
  • Compressed Size: Regular - 6.5" x 8"; Long - 8" x 7"; Wide Long - 7.5" x 9"
  • Stuff Sack Size: Regular and Long - 8" x 17.5"; Wide Long - 9" x 20"

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