Big Agnes
Lost Dog 30 (FireLine Eco)
MSRP

Product Information
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.
Other Big Agnes Available
DICK'S Sporting Goods
1656 Stringtown Rd
Grove City, OH 43123
Pickup Available Now

Other Big Agnes Available
REI - Columbus - Easton
4150 Worth Ave
Columbus, OH 43219
Pickup Available Now

Other Big Agnes Available
DICK'S Sporting Goods Combo Store
4304 Easton Gateway Dr
Columbus, OH 43219
Pickup Available Now

Other Big Agnes Available
REI - Columbus - Dublin
6424 Sawmill Rd
Columbus, OH 43235
Pickup Available Now

Other Big Agnes Available
DICK'S Sporting Goods
6111 Sawmill Rd
Dublin, OH 43017
Pickup Available Now

Other Big Agnes Available
DICK'S Sporting Goods
1500 River Valley Cir S
Lancaster, OH 43130
Pickup Available Now

Other Big Agnes Available
EverestGear
117 N Prospect St
Granville, OH 43023

Other Big Agnes Available
REI - Beavercreek
2500 N Fairfield Rd, Ste D2
Beavercreek, OH 45431

Other Big Agnes Available
DICK'S Sporting Goods
2235 Walker Lake Rd
Ontario, OH 44903

Authorized Big Agnes Dealer
Trek Bicycle Store of Columbus
1442 W Lane Avenue
Columbus, OH 43221
Authorized Big Agnes Dealer
roll: Bike Shop on Lane Ave - Columbus
1510 W Lane Ave
Upper Arlington, OH 43221
Authorized Big Agnes Dealer
roll: Bike Shop on Main Street - Columbus
2468 E Main St
Bexley, OH 43209
Authorized Big Agnes Dealer
Trek Bicycle Columbus Dublin
6672 Sawmill Rd
Columbus, OH 43235

Authorized Big Agnes Dealer
roll: Dublin Bike Shop
317 W Bridge St
Dublin, OH 43017
Authorized Big Agnes Dealer
roll: Westerville Bike Shop
709 Worthington Rd
Westerville, OH 43082
Authorized Big Agnes Dealer
Cabela's
1650 Gemini Pl
Columbus, OH 43240

Authorized Big Agnes Dealer
Trek Bicycle Westerville
5985 Maxtown Road
Westerville, OH 43082

Authorized Big Agnes Dealer
DICK'S Sporting Goods
771 S 30th St
Heath, OH 43056

Authorized Big Agnes Dealer
DICK'S Sporting Goods
2700 Miamisburg Centerville Rd #388
Dayton, OH 45459

Authorized Big Agnes Dealer
Going, Going, Gone!
10351 Innovation Drive
Miamisburg, OH 45342
Authorized Big Agnes Dealer
Erb's Sports & Archery
4441 CR 70
Charm, OH 44617
Authorized Big Agnes Dealer
Charm Outdoors
4432 OH-557
Charm, OH 44617
Authorized Big Agnes Dealer
Spoke Life Cycles (Tiffin)
70 E Market St
Tiffin, OH 44883
Authorized Big Agnes Dealer
DICK'S Sporting Goods
5700 Deerfield Blvd
Mason, OH 45040

Product Information
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.
Review Snapshot
by PowerReviews
Ratings Distribution
Best Uses
- 13 Season Use
- 1Backpacking
Describe Yourself
- 1Casual/ Recreational
What Is Your Gear Style
- 1Comfort Driven
Reviewed by 4 customers
This is a great sleeping bag
I had bought a left and right zip so my wife and I could get together when camping. We did not need more than 30 degrees because we live in Florida. I have slept in this bag on a sailboat on deck when it was blowing 20 knots and it was 40 degrees out... I was snug as a bug in rug. Used it with a Insulated Air Core 25 x 72 pad. There was also a cleat under my pad. The pack size is a little large considering I previously had a slumberjack 30. Living in Florida I needed synthetic.

Survived a 1700 mile bikepacking trip
I took this bag on the Baja Divide bikepacking route from Jan - March. My sleep system was bombproof and cozy on this ride, which was really important because the trip was so incredibly challenging. The bag also compresses enough to fit nicely on the handlebars of my bike. We only got below freezing once or twice, and I was toasty if I wore some clothes. The rest of the time I would sleep naked (cleaner than wearing my one riding outfit!) and the soft inner fabric was really nice and didn't get all sticky and gross like other fabric can. The fabric around the neck is nice to tuck yourself in and the pillow barn is a huge win. I'm super happy with how this functioned on this trip and I totally got my moneys worth - perfect bag for this kind of trip. My critiques include: there is no insulation between you and the ground other than your pad. This is not awesome if you end up in a situation where the ground is very cold (think November in Washington). There is also no pulling your knees up to side sleep because you are stuck to the pad - this is more of a personal preference although I love not falling off my pad. I've used this bag for at least 50 nights this year and it traveled in a tight sack for all of those days, so it is no surprise that the fill has been squished and it seems a bit less warm now. This really is just a summer bag, and it works great at those temperatures. Overall, massive bang for my buck and is made super well.
Perfect fit for big and tall!
My partner is 6'3" and he fits with room to spare! We've never had a bag fit so well! Both little kids snuggled in too, haha. Like sleeping in a dream with the green sleeping pad. Love our bag and love the company!