Big Agnes Lost Lake SL 30 Regular

Priced: $181.97 - $299.95
Big Agnes Lost Lake SL 30 Regular -
FEATURES of the Big Agnes Lost Lake SL 30 Degree Sleeping Bag.
SPECIFICATIONS of the Big Agnes Lost Lake SL 30 Degree Sleeping Bag.


  • Draft collar, draft wedge, and draft zipper ensure warm air stays in and cold air keeps out


  • Mesh storage sack and nylon stuff sack included for convenient storing and packing
  • Durable nylon fabric shell resists water, and smooth nylon taffeta lining resists stains
  • Insotect Flow construction evenly distributes heat with flow-optimization and baffle design
  • Shell is nylon rip-stop, breathable and down proof with water repellent finish


  • Traditional style mummy bag features full insulation underneath (unlike other Big Agnes System bags with integrated pad sleeve)


  • Light and lofty 700-fill DownTek water-repellent down insulation won't clump up or freeze, because it won't get wet even in a downpour


  • Contoured hood features a draw cord and cord lock for easy adjustment


  • Designed to decrease weight and size, while increasing thermal value using the traditional mummy shape


  • Left- and right-zip bags mate together for a cozy coupling
  • 70" / 178 cm YKK #8 zipper


  • Exterior loops for hang drying or storage
  • Left and Right bags can be mated together to form double wide bag
  • Cozy 30F-degree temperature rating makes the bag ideal for camping late spring through early fall
  • Liner loops

The new Lost Lake SL 30 bag from Big Agnes is full of features for those who prefer a traditional mummy bag. The Lost Lake sports the new DownTek 700 fill down, which is treated using a nano-technology that makes the down water resistant as well as anti-microbial and anti-bacterial. The zippers allow you to mate right and left bags. Mesh storage sack and nylon stuff sack included.
A body-embracing mummy filled with water-repellent, always-lofty down, the Big Agnes Lost Lake SL Sleeping Bag: 30 Degree Down ensures a glorious night's sleep three seasons of the year. Comfort rated at 30F and surrounded in draft protection, this feathery womb is one you won't want to leave. While it's great that you're so cozy, you do have places to go.
The Big Agnes™ Lost Lake sleeping bag is built for performance and comfort. Keep true to your roots and go with what you know.
70" YKK #8 zipper lets you mate together any of our left and right zip bags with the same size.
Interior fabric loops for sleeping bag liners.
seals around neck to keep cold air from sneaking in.
insulates the connection between the bag and the pad.
tube insulates along the length of the zipper.
Shell is made of DownTek™ water repellent and constructed with Insotect Flow™ patent technology.
Fill Type - 700 DownTek™
Bag Weight - 1lb 14 ounces.
Shoulder Girth - 60"
Hip Girth - 54"
Foot Girth - 36"
Stuff Sack Size - M - 8" x 17.5"
Compressed Bag Size - 7" x 9"
Backcountry Edge

Delivering the all-weather reliability normally associated with synthetic insulation and the lightweight, compressible performance of down, the Big Agnes Lost Lake SL 30 Degree sleeping bag is a high-performance option for backpacking in summer or mild temperatures.

Mountain Gear
For those that prefer a traditional down mummy bag on their summer adventures, it doesn't get better than Big Agnes' Lost Lake SL +30.
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Bag Shape:Mummy
Bag Weight:2 lbs 4 oz / 1021 g
Cold Rating:30º.
Compressed Dimension:8 x 8" / 20 x 20 cm
Draft Collar:Collar
Fill Material:700 Fill DownTek
Fill Weight:14.5 oz / 410 g (Reg); 16 oz / 454 g (Long)
Fit up to:6'6" / 198 cm
Fits to Girth:Regular: 60" Long: 62"
Fits to Length:Regular: 5' 10" Long: 6 6"
Foot Dimension:38 inches
Foot Girth:36 in / 91 cm (Reg); 38 in / 96.5 cm (Long)
Hip Dimension:56 inches
Hip Girth:54 in / 137 cm (Reg); 56 in / 142 cm (Long)
Insulation:700 Fill Duck Down
Insulation Type:700+ Down Insulation
Item Weight:Regular: 1 lb 14 oz Long: 2 lb 1 oz
Liner Material:Nylon Taffeta
Lining Material:Nylon Taffeta
Material:Rip-Stop Nylon
Max User Height:6 ft 0 in (Regular), 6 ft 11 in (Large)
Other:Stuff Sack and Storage Sack Included
Packed Size:Regular: Stuff Sack size of 8" x 17.5", Compressed size of 7" x 9" Long: Stuff Sack size of 8" x 17.5", Compressed size of 8" x 8"
Recommended Use:Lightweight Warm-Weather Backpacking
Shell Material:Nylon Rip-stop w/ Nylon Taffeta Bottom
Shoulder Dimension:62 inches
Shoulder Girth:60 in / 152 cm (Reg); 62 in / 157 cm (Long)
Storage Sack Included:yes
Stuff Sack Dimension:(M)
Stuff Sack Volume:8x17.5 inches
Temperature Range:21° to 30°
Temperature Rating:30° F / -1° C
Weight:2 lb 1 oz / 935 g
Zipper Length:3/4
Zipper Side:Left

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