Farwell 0°

Synthetic fill Big Agnes System bags designed to excel in all conditions and provide more room than a mummy bag

Synthetic fill Big Agnes System bags designed to excel in all conditions and provide more room than a mummy bag

Our Classic Synthetic bags offer great value and high quality materials including Insotect Hotstream® insulation, featuring 100% recycled material, which feels as warm and soft as down insulation. Whether you're looking for your first bag or want to add a synthetic option to your gear quiver, campers of all levels will appreciate the versatility of these Big Agnes System bags. Made thermally efficient with A-Shingo™, A-Flex™, or quilted construction, you'll notice the total body insulation right away. Slip any rectangular 20" wide pad into our full pad sleeve design and you are ready to go.
$199.95 to $209.95
100% Guarantee


Our top priority is to provide customer service as stellar as the award-winning products we create. If one of our products does not perform to your satisfaction, contact our customer service team and we will help you find gear that fits your needs.
$199.95 to $209.95

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Specs + Sizing

Bag WeightReg: 3lb 15oz / 1.79kg / Long: 4lb 7oz / 2.01kg
Fill WeightReg: 42oz / 1.19kg / Long: 48oz / 1.36kg
Compressed Bag SizeReg: 10in x 12in / 25 x 30cm / Long: 10in x 13in / 25 x 33cm
Stuff Sack SizeReg: XL 10in x 21in / XL 25 x 53cm / Long: XL 10in x 21in / XL 25 x 53cm


Design improves connection between pad sleeve and bag providing a roomier sleeping space without adding bulk

Sculpted contour allows the bag to drape around you, increasing insulation performance

Free Range Hood design gives you the freedom to lift your head while snuggled in the hood

Low profile cordlock lets you un-cinch the hood with one hand

No-draft collar, No-draft wedge, No-draft zipper

Stretch panel on pad sleeve doubles as pillow stabilizer

Our softest, technical sleeping bag fabrics yet - smooth and soft to the touch

Zipper Garage

Mate together left and right zip bags

Interior fabric loops for sleeping bag liners

Exterior loops for hang drying or storage

Mesh storage sack & nylon stuff sack

Construction + Materials

Nylon rip-stop shell fabric with a water repellent finish

Nylon taffeta lining

A-Flex™ construction

Hotstream® by Insotect - 100% recycled polyester insulation

70"/178cm YKK #8 zipper

Vaulted foot box creates more wiggle room for your feet

Rectangular shaped bag

Integrated full pad sleeve

Here’s what other people think.

What’s in a Name?

Farwell Mountain has seen its share of boom and bust. This broad mountain has taken lives in mining accidents, card game brawls, and modern day avalanches. The mining boom in the late 1800's brought Chicago entrepreneur, John Farwell, to the area. He had elaborate hydraulic mining practices, which included a 27-mile long water ditch built by Robert Macintosh at a cost of $160,000 per mile. The mine cost him more money than it ever produced.