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Big Agnes Anthracite 20 Degree (2026) Sleeping Bag

Purchase Anthracite 20 Degree (2026)

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Big Agnes Anthracite Sleeping Bag Series

By Cheyne

Enwild Gear Specialist

The Enwild Difference

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Built for dependable warmth in variable conditions, the Big Agnes Anthracite 20 Degree uses lightweight synthetic insulation to deliver packable comfort and reliable performance for backpacking adventures near and far.

Description

Synthetic warmth for reliable performance in any conditions: Big Agnes' own FireLine Pro Eco synthetic insulation consists of multi-denier, short-staple fibers with a high loft to effectively trap heat. These fibers compress tightly for packability and have the added bonus of retaining their insulating properties even if your bag gets wet.
Warmth-efficient fit: The streamlined mummy shape helps keep weight to a minimum and makes it easier to stay warm all night long. A two-way zipper lets you vent the bag on warmer nights.
Anti-draft features for greater comfort: A cinchable hood has insulated tubing along the upper opening and collar for sealed-in warmth. The zipper also has anti-draft protection so cold air can't sneak in.
Conscious construction: Insulation, lining and shell are all constructed using recycled materials without sacrificing durability.

Sizing, fit, and storage

The Anthracite 20 Degree sleeping bag is available in Regular (fits up to 6'), Long (fits up to 6'6") and Long Wide (fits up to 6'6") sizes. The Regular has a shoulder girth of 60 inches and tapers down to 36 inches at the footbox. The Long has a shoulder girth of 63 inches and tapers down to 39 inches at the footbox. The Wide Long has a shoulder girth of 75 inches and tapers down to 51 inches at the footbox. Interior liner loops can be used to secure a bag liner and exterior loops let you hang the bag for storage or drying. A stuff sack is included.

Technical Specs

Best Use

Backpacking, Camping

En Comfort Rating

32 Degrees F

En Lower Limit Rating

22 Degrees F

Fill Material

Fireline Pro Eco Recycled Synthetic

Fits To Girth

Regular: 60"
Long: 63"
Wide Long: 75"

Fits To Length

Regular: 6' 0"
Long: 6' 6"
Wide Long: 6' 6"

Temperature Rating

20 degrees F

Insulation Type

Synthetic

Item Weight

Regular: 2 lbs 12 oz
Long: 3 lbs 1 oz
Wide Long: 3 lbs 10 oz

Other

Stuff sack included

Warranty

Limited Lifetime

Packed Size

Regular: 8" x 17.5"
Long: 9" x 20"
Wide Long: 9" x 20"

Shell Material

Recycled polyester ripstop with a DWR

Liner Material

Recycled polyester with a DWR

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