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Big Agnes
Lost Dog Sleeping Bag: 30F Synthetic

Out of Stock

Don't worry though, we have a lot more 30 to 55 Degree Synthetic Sleeping Bags in stock than that.

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Why We Like The Lost Dog Sleeping Bag

The Lost Dog Sleeping Bag stands up to any shoulder season adventure you've got planned. At just over 2 pounds, this sleeping bag is light enough for high-mileage treks without sacrificing comfort—like a draft collar, single-handed cinch hood, and free-range footbox. Create additional comfort by zipping the bag to another bag from the Big Agnes line to snuggle up with your partner for an even warmer experience. And by sliding your sleeping pad into the pad retainer, you can ensure full-coverage even if you both toss and turn throughout the night.


  • 30-degree sleeping bag for shoulder season adventures
  • Synthetic material reduces moisture absorption for full protection
  • Full Range hood and foot-box create flexibility and comfort
  • Zips together with other select Big Agnes sleeping bags
  • Internal loops for sleeping bag liners to stretch shoulder season
  • Zipper garage protects chin from cold metal throughout the night
  • Invented and tested in the Colorado Rockies
  • Item #BAG00F0
[face fabric] nylon, [lining] polyester
FireLine ECO synthetic
Max User Height
[regular] 5ft 10in, [long] 6ft 6in
Shoulder Circumference
[regular] 69in, [long] 72in
Hip Circumference
[regular] 60in, [long] 63in
Foot Circumference
[regular] 49in, [long] 52in
Bag Length
[regular] 5ft 10in, [long] 6ft, 6in
Draft Tube
no-draft collar, no-draft wedge, no-draft zipper
Pad Retainer
[regular] 20in-25in x 72in, [long] 20in-25in x 78in
full-length zipper
Fill Weight
[regular] 1lb 4oz, [long] 1lb 6oz
Storage Sack
Stuff Sack
rip-stop polyester
Stuff Size
[regular] 7in x 8.5in, [long] 7in x 9.5in
Claimed Weight
[regular] 2lb 4oz, [long] 2lb 8oz
Manufacturer Warranty