Big Agnes

Lost Ranger UL 3N1 15

Colour: Grey/Orange
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The most versatile ultralight sleeping bag out there

Lost Ranger Peak, a few miles south of Big Agnes Mountain, is perched above one of the most beautiful basins in Colorado. In winter, it’s a pretty inhospitable place – and certainly not one to get lost, ranger or not. To survive in such a location you’d need some pretty high-performance kit. Something like the Lost Ranger UL 3N1 sleeping bag, for example. This innovative, modular, ultralight sleep system offers three bag configurations in one simple yet technical package. Consisting of inner and outer bags that can be used standalone or combined, it’s a versatile option for variable conditions and temperatures. The outer bag also has a unique mat cinch system to ensure it stays perfectly attached to your sleeping mat, so you won’t roll off in the middle of the night. In short, if you’re looking for a single solution to take camping, backpacking and everywhere in between from spring right through to autumn, you’ve found it in the Lost Ranger. These ultra-lightweight, down-filled bags deliver optimum comfort whether you tend to run hot or cold, and whether you sleep on your back or your side (and even if you’re one of those weirdos who sleeps on their front)

    • 3N1 System Bags offer three bag configurations for temperature versatility with a technical, roomy sleeping space 
    • Ultralight, durable materials with 850 fill Downtek water-repellent down, for those who aren't willing to sacrifice comfort for compressibility 
    • Maximum thermal efficiency is achieved when inner and outer bags are layered, using offset quilted construction 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 
    • Fitted with the unique Big Agnes adjustable mat cinch system, designed to help keep you and your bag on your sleeping mat all night long, no matter how much you toss and turn The inner bag design mimics the award-winning Big Agnes 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 draught collar, wedge and single anti-snag left side zipper 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 low-profile pillow pouch on mat sleeve, keeps your pillow tucked in all night 
    • Regular and Long sized bags available 
    • Storage sack & stuff sack included
    • Compatible Pad Size: 51 - 76 x 183 - 198 cm
    • Rectangular pad shape recommended
    Temperature Ratings
    • System: 15˚F / -9˚C
    • Inner: 35˚F / 2˚C
    • Outer: 50˚F / 10˚C
  • Big Agnes Lost 3N1 Features Overview

  • Size Regular Long
    Fits up to 6' / 183 cm 6'6" / 198 cm
    Total Bag Weight 992 g 1.08 kg
    Inner Bag Weight 454 g 510 g
    Outer Bag Weight 510 g 567 g
    Total Fill Weight 425 g 482 g
    Inner Bag Fill Weight 227 g 255 g
    Outer Bag Fill Weight 198 g 227 g
    Compressed Size 22 x 20 cm 23 x 22 cm
    Stuff Sack Size 20 x 45 cm 20 x 45 cm

    Big Agnes Lost Ranger UL 3N1 Girth Overview

    • Shell: Ultralight nylon rip-stop
    • Lining: Ultralight nylon rip-stop fabric
    • Pad sleeve: Ultralight nylon rip-stop
    • 850 fill DownTek™
  • BLUESIGN Certified Partner - BLUESIGN gives you the assurance that only companies that act responsibly were involved in the manufacture of a product that is designated with the BLUESIGN® product label.
  • Big Agnes is a small, independent US outdoor brand out of Steamboat Springs, Colorado – a small ski-town that we’ve never visited but which we like to imagine is full of mountain-loving, trail-hiking outdoorsy types. That would make sense, since the company makes some of the best ultralight backpacking gear around, including the award-winning Copper Spur, Tiger Wall and Fly Creek tents. It is kit that has clearly been designed by a gang of folks who love sleeping in the dirt just as much as we do here at WildBounds.

    Oh, and if you’re still wondering where the heck that name Big Agnes comes from, we did try to find out. Depending on who you talk to, it’s either an affectionate tribute to a legendary truck drivin’ mountain mama, or a 12,000 foot peak in the Mount Zirkel Wilderness. We kinda like the first one better.

The warmth of the bag is on point!

-Devin, Verified Buyer


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