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Item #: bag0246

Big Agnes

Lost Lake SL 30 Sleeping Bag (700 Down)

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Cush Pillow - blue

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Product Information

Product Information For The Big Agnes Lost Lake SL 30 Sleeping Bag (700 Down)


Brand Big Agnes
Weight 2 lb 1 oz / 935 g
Max User Height 6 ft 0 in (Regular), 6 ft 11 in (Large)
Shoulder Girth 60 in / 152 cm (Reg); 62 in / 157 cm (Long)
Hip Girth 54 in / 137 cm (Reg); 56 in / 142 cm (Long)
Foot Girth 36 in / 91 cm (Reg); 38 in / 96.5 cm (Long)
Fill Weight 14.5 oz / 410 g (Reg); 16 oz / 454 g (Long)
Insulation 700 Fill Duck Down
Insulation Type 700+ Down Insulation
Lining Material Nylon Taffeta
Material Rip-Stop Nylon
Packed Size 7 x 9 in / 18 x 23 cm
Temperature Range 21° to 30°
Temperature Rating 30°


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.


  • 70 in / 178 cm YKK #8 zipper
  • Liner Loops
  • No-draft collar
  • No-draft wedge
  • No-draft zipper

Reviews For The Big Agnes Lost Lake SL 30 Sleeping Bag (700 Down)


by PowerReviews
Big AgnesLost Lake SL 30 Sleeping Bag (700 Down)

(based on 1 review)

Reviewed by 1 customer

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Great bag!

By Bob

from Ohio

About Me Avid Adventurer

Verified Buyer


  • Lightweight
  • Packs Small
  • Roomy


    Best Uses

    • 3 Season Camping

    Comments about Lost Lake SL 30 Sleeping Bag (700 Down):

    I bought this to use inside my BA Lost Ranger for colder than expected temps. I find the LR only keeps me comfortably warm (not waking up chilled) down to around freezing. I slept out the other night at 14deg with both bags and was totally warm. It fits in a small OR compression stuff sack, 6x10" compressed. I am camping off my dual-sport bike.

    • What Is Your Gear Style:
    • Comfort Driven
    • Was this a gift?:
    • No

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    Questions & Answers

    Q & A For The Big Agnes Lost Lake SL 30 Sleeping Bag (700 Down)

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