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Big Agnes Lost Dog 15 Sleeping Bag

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Big Agnes Lost Dog 15 Sleeping Bag

sku# 173372
Big Agnes - Lost Dog 15 Sleeping Bag
Model Info
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Product Info

Roomy, airy and comfortable -- these are the driving forces behind the Big Agnes Lost Dog 15 Sleeping Bag. Made with FireLine™ ECO Synthetic Insulation and topped with a water repelling durable nylon, this quilted constructed wonder replicates the feel of your favorite blanket from home!

Product Details


Nylon Ripstop Shell Fabric with Water Repellent Finish

Soft Cozy Polyester Lining


FireLine™ ECO Synthetic Insulation100% post-consumer recycled polyester. Features low-denier fibers that are tightly woven and provide high loft, compressibility, high weight-to-warmth ratio and durability.


Fill WeightRegular: 31oz / 878g | Long: 35oz / 992g

Compressed Bag SizeRegular: 8" x 9.5" / 20 x 24cm | Long: 8" x 10.5" / 20 x 27cm

Fits Up ToRegular: 6' / Long: 6'6"

Zipper LengthRegular: 65" / 165cm | Long: 70" / 178cm


Streamlined Silhouette for Increased Thermal Efficiency

Flex Pad SleeveFeatures stretch construction that accommodates multiple pad widths, and easily connects your bag to your pad.

Free Range HoodJacket-style hood opening contours to the shape of your face for a comfortable, snug fit.

Fits 20 - 25" Wide Pads

Low-Profile Cordlock Lets You Uncinch the Hood with One Hand

Pillow Barn Keeps Your Pillow Tucked in Tight

Internal Hood Drawcord Gives a Secure Cozy Fit When Cinched

Free Range Footbox

Anti-Snag Zipper

Zipper Garage

Mate Together Left and Right Zip Bags

No-Draft Collar, No-Draft Wedge, No-Draft Zipper

Interior Fabric Loops for Sleeping Bag Liners

Exterior Loops for Hang Drying or Storage

Storage and Stuff Sacks Included


  • Insulation: Synthetic
  • Temperature Rating: 15
  • Shape: Mummy
  • Stuff Sack Size: 9" x 20"
  • Warranty: Limited Lifetime
Size Long Left Regular Left Wide Long Left
Length Long Regular
Zipper Location Left Side Left Side
Max User Height 6'6" 6'
Weight (lbs) 3.62 3.18
Weight (g) 1640 1450

Other Notes

Big Agnes products can only be shipped within the United States



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