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Big Agnes
Lost Dog Sleeping Bag: 45F Synthetic

4 out of 5 stars
4 Review

Out of Stock

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

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Why We Like The Lost Dog Sleeping Bag

It's much easier for us to say yes to that next backpacking trip when we have the 45-degree Lost Dog Sleeping Bag from Big Agnes in our pack. The synthetic fill keeps the Lost Dog light and easy to pack while also warding off water in late May storms.


When it's time to call it a night you'll forget you're even in the backcountry—the Free Range footbox and Free Range hood give you room to wiggle while the pad retainer keeps your bed in one piece. With all that comfort, you'll wake up rested and ready for another day on the trail, the lake, or of simple relaxing at the campground.


Details

  • Summertime sleeping bag for backpacking or weekend camping
  • Full-length zipper cools you down in hot summer temps
  • Free-range footbox allows your toes to move through the night
  • Mates with other Big Agnes full-zip sleeping bags
  • Ripstop material protects bag for nights under the stars
  • Semi-rectangular style gives a roomy bed-like feel
  • Item #BAG00EZ
Material
[face fabric] nylon ripstop, [lining] polyester
Insulation
FireLine ECO synthetic
Shape
semi-rectangular
Zipper
full-length YKK anti-snag
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 zipper, no-draft wedge
Pockets
none
Pad Retainer
[regular] 20in-25in x 72in, [long] 20in-25in x 78in
Venting
full-zipper
Fill Weight
[regular] 11oz, [long] 13oz
Degree
45F
Storage Sack
mesh
Stuff Sack
nylon
Stuff Size
[regular] 6.5in x 5.5in, [long] 6.5in x 6.5in
Claimed Weight
[regular] 1lb 7oz, [long] 1lb 10oz
Activity
backpacking, weekend camping
Manufacturer Warranty
lifetime

Overall Rating

4 based on 4 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 1 reviews
3 Stars - 0 reviews
4 Stars - 1 reviews
5 Stars - 2 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
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2 out of 5 stars

October 11, 2022

Not a Fan

Familiarity:
I've used it several times
Size Bought:
Long
Height:
6' 2"
Weight:
200

The pad retainer won't hold my 78 inch pad very well and the zipper gets caught all of the time. It's only rated for 45 degrees. I could have found a wiser way to spend my money.

Jonathon K
5 out of 5 stars

July 29, 2021

Excellent!

Great sleeping bag. Light and easy to use and store.

mohammad
5 out of 5 stars

May 26, 2021

Great summer camping bag

Familiarity:
I've put it through the wringer
Height:
5' 10"
Weight:
155

I?m a hammock camper and this bag is awesome for summer nights. I wouldn?t bring it if temps plan to drop below 50. Like previous review, I was in it when temps dropped into low 40?s and was very cold but the bag is only rated for 45° so that was my fault. The only fault I have found with this bag is that the pillow pocket on top is very small and doesn?t fit my stoic self inflatable pillow. Very durable, my dogs have laid on it, I?ve gotten it dirty and it has held up to it all. Zipper is nice and big and doesn?t get snagged very easily. When it does it?s very easy to pull out without damage. Highly recommend

Phil S
4 out of 5 stars

September 6, 2020

Nice bag for warm nights

Familiarity:
I've used it once or twice and have initial impressions
Weight:
200

If looking for a light weight compressable bag for warmer nights then this is a great bag. Not sure how temp ratings are determined though because when I used this bag in dry conditions (tent) and the temperature dropped into the low 40's F I was cold. Even putting on a light head cap, gloves and my Northface jacket I was still pretty cold. A great bag for warmer temperatures though I'd estimate 55 to 60 F unless you sleep in winter long underwear/ socks.

Michael F