SKU: 68462143528

Big Agnes Lost Dog 15F/-9C Sleeping Bag

Sale price$125.97 Regular price$139.97
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Shipping Estimate
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

Big Agnes Lost Dog 15F/-9C Sleeping BagLIGHTWEIGHT SYNTHETIC FILL DESIGNED TO EXCEL IN ALL CONDITIONS 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

LIGHTWEIGHT SYNTHETIC FILL DESIGNED TO EXCEL IN ALL CONDITIONS

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.

Specs + Sizing

Bag Weight Regular: 3lb 3oz / 1.45kg / Long: 3lb 10oz / 1.64kg / Wide Long: 4lb / 1.81kg
Fill Weight Regular: 31oz / 878g / Long: 35oz / 992g / Wide Long: 40oz / 1.13kg
Compressed Bag Size Regular: 8" x 9.5" / 20 x 24cm / Long: 8" x 10.5" / 20 x 27cm / Wide Long: 9" x 12.5" / 23 x 32cm
Stuff Sack Size Regular: L 9" x 20" / L 23 x 51cm / Long: L 9" x 20" / L 23 x 51cm / Wide Long: XL 10" x 21" / XL 25 x 53cm


Features

  • The Big Agnes System bags offer technical, roomy sleeping spaces for those who aren't willing to sacrifice comfort or packability  
  • Streamlined silhouette for increased thermal efficiency 
  • Flex Pad Sleeve features stretch construction that accommodates multiple pad widths, and easily connects your bag to your pad  
  • Regular and Long bags fit 20" - 25" wide pads, Wide Long bags fit 25" - 30" wide pads
  • Free Range Hood gives you the freedom to lift your head. Jacket-style hood opening contours to the shape of your face for a comfortable, snug fit
  • Low-profile cordlock lets you un-cinch the hood with one hand
  • Pillow Barn – keeps your pillow tucked in tight all night
  • Internal hood drawcord gives you a secure, cozy fit when cinched
  • Free Range Footbox -  creates wiggle room for your feet
  • Rectangular shaped bag
  • Anti-snag zipper for a smooth, quick zip 
  • Regular: 65" / 165cm YKK #5 anti-snag locking zipper
  • Long: 70" / 178cm YKK #5 anti-snag locking zipper
  • Wide Long: 70" / 178cm YKK #5 anti-snag locking 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
  • Mesh storage sack & polyester ripstop stuff sack
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 68462143528

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4.9 ★★★★★
Based on 8 reviews
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A
Verified Purchase
Aaron Waldron
Bozeman, US
★★★★★ 5
What you wearing?
Size: 36W x 34L, Color: Rinse
Great look. Comfy. Slender and yet still roomy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2026
A
Verified Purchase
Amazon Customer
Battle Creek, US
★★★★★ 4
Better jeans than I expected
Size: 29W x 34L, Color: Rinse, Size: 29W x 34L, Color: Rinse
I pretty much only wear Levi's 510s & as of lately Asos skinny jeans. Thought I'd give these a shot. I wear between 28w-30w so I ordered 29w. They fit good & seems to be really true to size. I could have probably ordered the 28w for a tighter fit. Only reason I didn't give them 5 stars is that the dye transfers from the denim. I'm sure eventually that will stop happening?? I like the dark denim so I don't wanna continue to wash them so they fade out so soon.
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Reviewed in the United States on February 19, 2025
C
Verified Purchase
cindy l.
Bozeman, US
★★★★★ 5
Get it!
Size: 29W x 29L, Color: Rinsed
As shown. Feels thick and expensive.
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Reviewed in the United States on May 24, 2026
D
Verified Purchase
Dan
West Palm Beach, US
★★★★★ 5
Great jeans. Sized write
Size: 32W x 29L, Color: Rinsed
Great jeans for the money. I would say they are as good as Levis. They are sized write and have more waist and inseem sizes. I have 10 pairs probably.
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Reviewed in the United States on April 20, 2026
E
Verified Purchase
Eric prevatte
Draper, US
★★★★★ 5
Great deal
Size: 35W x 32L, Color: Rinsed
Great fit with out trying them on before getting them
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Reviewed in the United States on April 28, 2026

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