Free 2-Day Shipping on Orders Over $50

Detail Images

  • Big Agnes - Detail
  • Big Agnes - Detail
  • Big Agnes - Front
  • Big Agnes - Lost Dog Sleeping Bag: 0 Degree Synthetic - Yellow/Navy
  • Big Agnes - Detail -
  • Big Agnes - Detail -
  • Big Agnes - Front -

Current Color

  • Big Agnes - Lost Dog Sleeping Bag: 0 Degree Synthetic - Yellow/Navy

Big Agnes Lost Dog Sleeping Bag: 0 Degree Synthetic

$209.95 - $219.95

Free 2-Day shipping on orders over $50. Learn More

Select a Size:

Select options
  • Select options
    • Reg/Left Zip
    • Reg/Right Zip
    • Long/Left Zip
    • Long/Right Zip

    Select a Color:

    Select options
  • Select options
    • Yellow/Navy

    Be the first to review


    Lost Dog Sleeping Bag

    If your adventures don't stop when the days get shorter, the Lost Dog 0-degree sleeping bag will keep you warm throughout the winter. Even though this bag isn't as light as its down counterparts, you'll have peace of mind knowing that if a snowdrift blows into your tent, the hydrophobic fibers coupled with the water-repellent finish will keep you warm even if you get wet. Stay even warmer by zipping the Lost Dog to another Big Agnes sleeping bag for a snugglefest after your sufferfest.

    For additional comfort, Big Agnes added a Free Range hood so you can lift your head without restriction and a Free Range foot-box so your feet can sit naturally at the end of your bag. And hey, if you need to warm up tomorrow's clothes before hitting the trail, there's plenty of space in the foot box for that, too.

    • 0-degree sleeping bag for cold winter nights in the backcountry
    • Hydrophobic fibers protects from early-morning condensation
    • Polyester lining feels soft while also managing moisture
    • Cordlock on the hood can be cinched with one hand
    • Pad retainer fits multiple sized pads for back- or front-country use
    • Mates with other Big Agnes bags to create a backcountry bed
    • Item #BAG00F2

    Tech Specs

    [shell] nylon, [lining] polyester
    water-repellent finish
    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] 2lb 8oz, [long] 3lb 1oz
    Storage Sack
    Stuff Sack
    rip-stop polyester
    Stuff Size
    [regular] 10in x 21in, [long] 10in x 21in
    Claimed Weight
    [regular] 3lb 8oz, [long] 4lb 1oz
    Recommended Use
    backpacking, weekend camping, winter camping
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Synthetic System Bags w/Flex Pad Sleeve

    Big Agnes System bags with FireLine™ ECO synthetic insulation offer a roomy, rectangle-shaped sleeping space with an integrated Flex Pad Sleeve on the bottom. With technical fabrics and construction, 100% recycled, super-warm insulation, and tons of comfort features, these comfortable sleeping bags are designed to be lightweight enough for backpacking but cozy enough you'll want them in the campground too. The streamlined silhouette and Flow™ construction increase the thermal efficiency keeping you warm from head to toe. The Flex Pad Sleeve unites easily with your pad, and as you change positions over the course of the night, will keep you from rolling off your pad.