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Big Agnes  |  SKU: BA-BLR3N115R22

Big Agnes | Lost Ranger 3N1 15°

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$279.97 $399.95
Shipping calculated at checkout.

Delivery and Shipping

Orders are processed and shipped within 24 hours on Monday - Friday, excluding holidays and when we attend events. Orders placed before 10am generally ship same day.


Big Agnes | Lost Ranger 3N1 15°

3 configuration, 3 season sleeping bag

The Lost Ranger 3N1 15° sleeping bag is part of our latest evolution of the Big Agnes Sleep System. This modular bag design offers just what you’d expect: three bag configurations in one simple, yet technical sleep system that stays attached to your pad, so you won’t roll off in the middle of the night. It's the only bag you need for 3-season camping, backpacking and everywhere in between. These lightweight, down-fill bags deliver comfort and versatility no matter your sleep style or temperature preference.


Total Weight: 2lb 13oz 3lb 1oz
Inner Bag Weight: 1lb 4oz 1lb 6oz
Outer Bag Weight: 1lb 8oz 1lb 11oz
Fill Type: 650 DownTek™ 650 DownTek™
Total Fill Weight: 19oz 21oz
Inner Bag Fill Weight: 10oz 11oz
Outer Bag Fill Weight: 9oz 10oz
Compressed Bag Size:
(compression bag not included)
9" x 8" 9.5" x 9.5"
Stuff Sack Size: 14L 8" x 17.5" 14L 8" x 17.5"
Max User Height: 6' 6' 6"
Recommended Pad Size: 20" - 30" x 72" - 78" 20" - 30" x 72" - 78"
Shoulder Girth: 62"(Inner) | 69" (Outer) 65" (Inner) | 72" (Outer)
Hip Girth: 54"(Inner) | 61" (Outer) 57" (Inner) | 64" (Outer)
Foot Girth: 43"(Inner) | 55" (Outer) 46" (Inner) | 58" (Outer)



  • 3N1 System Bags offer three bag configurations for temperature versatility with a technical, roomy sleeping space that keeps you on your pad throughout the night 
  • Pad Cinch System is adjustable to a variety of pad sizes. The self-equalizing drawstring easily connects bag to pad and the middle securement feature provides extra stability 
  • Maximum thermal efficiency is achieved when inner and outer bags are layered, using offset quilting to minimize cold spots 
  • Sleep on any side using the inner bag alone and within the outer bag. Three-quarter, anti-snag ambidextrous zipper stays out of the way when side sleeping 
  • The inner bag design mimics our award-winning Sidewinder sleeping bag, designed for side sleepers and made to move with you from side to side 
  • Keep your head snug and warm using the inner bag with jacket-style hood 
  •  Spacious, rectangular shaped outer bag is constructed with no-draft collar, no-draft wedge, and two no-draft, anti-snag dual side zippers with zipper garage 
  • Ultimate comfort and additional hand warmth with hand tuck pockets at the top of outer bag 
  • Access from top and bottom of both inner and outer bag with two-way zipper for easy temperature control throughout the night 
  • Easy access to discreet pillow barn on pad sleeve keeps your pillow tucked in all night 
  • Create a doublewide system bag by mating two 3N1 bags 
  • Regular and Long sized bags available 
  • Storage sack & stuff sack included


Shell: Lightweight nylon ripstop 

Outer bag lining and Inner bag: GRS certified 100% post-consumer recycled polyester taffeta featuring a PFC-free water-repellent finish 

Pad sleeve: Lightweight nylon ripstop 

650 fill DownTek™ repels water while maintaining insulating value - bluesign® approved PFC-free water-repellent chemistry 

Quilted construction

Made in China

Cleaning and Care For Down Sleeping Bag


Keep your bag hanging if possible, or in its included mesh storage sack
Store in a cool, dry place away from heat sources


Even dirtbags wash their bags!
Machine wash in a washing machine WITHOUT AN AGITATOR, agitators are likely to cause damage to your gear
Oversized bags require oversized machines, you may need to go to a laundromat to wash your larger bags
Wash on a warm, gentle cycle
Use gear specific soap, we recommend Nikwax Down Wash Direct
Rinse twice
Tumble dry low heat with clean tennis balls
Finish by drying on high heat in 5 minute intervals to loft down
*Allow to cool between intervals to avoid damage to shell*

Do not use fabric softeners
Do not bleach
Do not iron
Do not dry clean

Repairs and Warranty:

All Big Agnes gear is guaranteed against manufacturing or material defect. Big Agnes does not warranty products damaged from normal wear and tear, alteration made by owner, misuse, accidents, or damages caused by uses other than intended. Damage due to misuse, normal wear and tear, or improper care may be repaired, at the discretion of Big Agnes, at a reasonable charge. Gear returned for repair must be clean and free of debris.

Questions? Call Big Agnes or open a support case:
877.554.8975 | support.bigagnes.com


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