How to Choose Sleeping Bags for Backpacking
Big Agnes Lost Ranger 3N1 0 Sleeping Bag
$469.95 – to $489.95
Combining inner and outer bags that can be configured 3 different ways, the Big Agnes Lost Ranger 3N1 0° sleeping bag keeps you comfy whether the night is warm, cold or somewhere in between.
Key Details
Fill
650-fill-power, PFC-free Downtek down
Weight
Regular - Left Zip: 3 lbs. 12 oz.
Long - Left Zip: 4 lbs. 2 oz.
Temperature Rating (F)
0 degrees (F)
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- 3N1 system offers 3 bag configurations with 2 lightweight, down-insulated bags for temperature versatility and a technical sleep system that keeps you on your pad all night
- Use just the outer bag on warm summer nights, just the inner bag when temperatures start to drop, and both together on the coldest trips for ultimate warmth
- Layering the inner and outer bags maximizes thermal efficiency; their offset quilting minimizes cold spots
- Inner bag design mimics the Big Agnes Sidewinder sleeping bag; it's designed for side sleepers and made to move with you from side to side
- Keep your head snug and warm using the inner bag's jacket-style hood
- Spacious, rectangular-shaped outer bag is constructed with a no-draft collar; a no-draft wedge; and 2 no-draft, antisnag side zippers with zipper garages
- Ultimate comfort and additional hand warmth with hand tuck pockets at the top of outer bag
- Padlok™ sleep system attaches easily to your sleeping pad (not included), allowing you to comfortably roll around inside without rolling off your pad
- Padlock design features a pad cinch system with self-equalizing drawstring to easily connect the bag to your pad while the middle securement provides extra stability
- Pad cinch system is adjustable to accommodate a variety of pad sizes
- Pillow Barn attached to pad sleeve allows for natural head movement while keeping a pillow (or jacket) securely in place (pillow not included)
- 2-way zipper unzips from the top or bottom of both bags for easy temperature control throughout the night
- Inner bag features a center-zip YKK #3 zipper; outer bag features a left-zip YKK #5 zipper
- Includes a mesh sack ideal for long-term storage and a smaller stuff sack for active use
- To pack bag down to its minimum compressed size, Big Agnes recommends pairing it with a Big Agnes compression stuff sack or superlight girdle (not included)
Imported.
Temperature ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth, since many different factors contribute to your comfort while you sleep. Backpacking bags are typically rated for temperature according to an independent testing protocol—currently International Organization for Standardization (ISO) 23537, though some older items followed European Norm (EN) 13537. Testing is based on a person wearing one base layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38.
Each bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Some brands determine their own temperature rating by aligning to the Comfort rating for women’s bags, to the Lower Limit rating for men’s bags, or somewhere in the middle for nongendered bags.
View all Big Agnes Backpacking Sleeping BagsEach bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Some brands determine their own temperature rating by aligning to the Comfort rating for women’s bags, to the Lower Limit rating for men’s bags, or somewhere in the middle for nongendered bags.
| Best Use | Backpacking |
|---|---|
| Tested Lower Limit | -1 degrees (F) - ISO |
| Tested Comfort | 12 degrees (F) - ISO |
| Temperature Rating (F) | 0 degrees (F) |
| Temperature Rating (C) | -18 degrees (C) |
| Weight | Regular - Left Zip: 3 lbs. 12 oz. Long - Left Zip: 4 lbs. 2 oz. |
| Shell | Recycled 20-denier ripstop polyester with a water-repellent finish without intentionally added PFAS |
| Zipper Location | Left/Right |
| Insulation Type | Down |
| Water-Resistant Down | Yes |
| Fill | 650-fill-power, PFC-free Downtek down |
| Fill Weight | Regular - Left Zip: 1 lb. 14 oz. Long - Left Zip: 2 lbs. 1 oz. |
| Sleeping Capacity | 1-person |
| Lining | Recycled 20-denier polyester taffeta with a water-repellent finish without intentionally added PFAS |
| Sleeping Bag Shape | Rectangular |
| Fits Up To (in.) | Regular - Left Zip: 72 inches Long - Left Zip: 78 inches |
| Shoulder Girth (in.) | Regular - Left Zip: Inner: 62 inches; outer: 69 inches Long - Left Zip: Inner: 65 inches; outer: 72 inches |
| Hip Girth (in.) | Regular - Left Zip: Inner: 54 inches; outer: 61 inches Long - Left Zip: Inner: 57 inches; outer: 64 inches |
| Stuff Sack Size | 9 x 20 inches |
| Stuff Sack Volume | 21 liters |
| Gender | Unisex |
| Sustainability | Down certified to the Responsible Down Standard (RDS) |
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3 months ago
Great for changing temperature climates
I liked the ability have two layers of warmth, but the overall was not really suited for 0 degrees. Maybe comfortable above 25 F. The bag is ultra light, but zippers are lightweight and can snag. I returned for a single bag 0 degree. This would be great for the backpacker in more moderate climates and summer camping to use the outer layer. Big Agnes was great with return credit.
Review originally posted on Big Agnes
2 months ago
excellent bag
I used this bag on two kilimanjaro and one everest base camp trek. Night temperatures were as low as -14F and often at 0F. With socks, 260 long underwear top and bottom and a beanie, I was never cold in the bag. I used a big agnes inflatable pad on kili and modified (lengthened) the cinch on the outerbag so it could fit the mattresses in the teahouses on EBD.
Review originally posted on Big Agnes
1 month ago
Gear heads beware
If you like lots of different bags for all the temperature ranges, do not buy this bag. It basically covers them all. On the other hand, if space is an issue, you like one tool to do multiple jobs, this bag is for you!
Review originally posted on Big Agnes
4 months ago
Review originally posted on Big Agnes
4 months ago
The best sleeping bag that I've ever owned!
Ranger 3n1 0 UL I bought this bag last year for my annual hunting trips here in Colorado. Spent many a night between then and now in this bag. It holds your sleep pad, holds your pillow, has layering options, has a hood, and you can roll around when sleeping! From nights at 10-45, given a good and warm sleeping pad, I have never felt a chill. I have yet to push my trips into extremely cold conditions (-), but I have the utmost confidence that this bag would treat me well during those types of nights. It packs as a huge roll, but can be squished and is as lightweight as a feather! Zippers will always snag, no matter what sleeping bag you buy. So treat this thing with kindness and patience, and it will take care of you! My hunting buddies made fun of my huge pack. Then they put on my backpack only to realize that their ribbing was in vain, as my backpack is puffy, not heavy at all! We spiked out after a long trek into the wilderness, and they were in awe of my ultralight camp setup and how my backpack shrunk into nothing. I have made it through many cycles of extreme weather conditions: rain, freezing rain, warm days, cold and cloudy days, hail, light snow, decent snow, 40mph winds, and thunderstorms. All of which, I never once struggled sleeping in this bag. The bag never got wet inside of my backpack, and it warms up quickly after climbing in. I have never owned a sleeping bag of this quality, and will not be going back! Buy gear that allows you to go farther into your adventures, and that is comfortable enough for you to stay longer out there! This is my motto, and this bag allows me to leave many others at base camp.
Review originally posted on Big Agnes