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Lost Ranger 15 Sleeping Bag

Regular Price: $249.95

FROM: $187.46

You save: $62.49 (25%)
Selected color

Regular Price: $249.95

FROM: $187.46

You save: $62.49 (25%)
Only 3 items available Only 3 items available Only 3 items available
Lost Ranger 15 Sleeping Bag is available for purchase in increments of 1

Big Agnes Lost Ranger 15 Sleeping Bag, part of the Classic Down series offering warmth, compression, and the Big Agnes System bag design. Classic Series bags combine a roomier contour shape with a narrower pad sleeve to provide an overall more comfortable and cozier sleeping experience than ever before. Big Agnes also redesigned the bag to be taller across the top so you can roll over more freely. The ergonomic hood gives you more range of motion so that you can move unrestricted while staying hooded.

  • The Big Agnes System:  When insulation material is compressed under your body, it loses most of its ability to insulate. We eliminate the unnecessary bottom insulation and replace it with one of two pad sleeve designs to accommodate the pad which provides the insulation. This design provides a secure foundation and keeps you on the pad all night.
  • Flow™ Construction:   Insotect Flow™ is a flow-optimized insulation system that delivers uniform heat distribution and natural body contouring through its revolutionary baffle design. Flow Construction eliminates lateral and vertical down shifting by using vertical chambers with Flow Gates to regulate fill positioning and density. Strategically placed Flow Gates minimize vertical down shifting while vertical chambers minimize lateral shifting. With continuous vertical Flow chambers in place of traditional side seams, Flow bags eliminate potential cold spots which can occur with side seams. Vertical baffles now flow with your body for more rapid and uniform body heat distribution.
  • Lining:   Soft and breathable, down proof nylon taffeta with stain resistant finish.
  • Integrated full pad sleeve:   Never roll off sleeved pads again.
  • Semi-Rectangular Shape:   Offering more room in foot box and shoulders.
  • Zipper and compatibility:   70" YKK #8 zipper. Mate together our left and right zip bags with same size zipper.
  • Shell Fabric:   Down proof, nylon rip-stop. WR surface treatment to repel water.
  • Pad Sleeve Fabric:   Nylon rip-stop. WR surface treatment to repel water.
  • DownTek™ water repellent down insulation
  • Ergonomic hood design allows for more range of motion while staying hooded
  • Mesh storage sack & nylon stuff sack included
  • Interior fabric loops for sleeping bag liners
  • No-draft collar seals around neck to keep cold air from sneaking in
  • No-draft wedge insulates the connection between the bag and pad
  • No-draft zipper tube insulates along the length of the zipper


*Sleeping pad is sold separately. The Big Agnes System Sleeping Bag requires a pad to provide insulation on the bottom. The Lost Ranger Sleeping bag is compatible with a 20" rectangular sleeping pad.*



Insulation:   650 fill DownTek™

Shape:   Semi Rectangular

Draft Collar:   Yes

Stuff Size:   8" x 17.5"

Stuff Sack:   Yes

Degree:   15° F

Manufacturer Warranty:   Lifetime



Shell:   Nylon Ripstop, water-resistant coating

Lining:   Nylon Microfiber, stain-resistant finish



Reg:   2 lbs. 11 oz.

Long:   3 lbs. 1 oz.


Fill Weight:  

Reg:   16 oz.

Long:   19.5 oz.


Shoulder Girth:  

Reg:   70"

Long:   73"


Hip Girth:  

Reg:   65"

Long:   68"


Foot Girth:  

Reg:   53"

Long:   53"


Compressed Bag Size:  

Reg:   8" x 7.5"

Long:   8" x 8.5"