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The Big Agnes Anthracite 20° is a technical mummy bag featuring FireLine Pro Eco insulation and a PFAS-free finish. Lightweight and cozy for every adventure.
The Big Agnes Anthracite 20° is a versatile, traditional mummy-style sleeping bag engineered for technical performance and sustainable comfort. Insulated with FireLine™ Pro Eco recycled synthetic fill, this bag utilizes shingled and offset quilt construction to efficiently trap body heat while remaining highly compressible for summer backpacking or weekend campouts. The recycled shell and lining are treated with a moisture-repellent finish that is free of intentionally added PFAS, ensuring you stay dry and cozy without harmful chemicals. Featuring a contoured hood, oversized no-draft collar, and a smooth YKK anti-snag zipper, the Anthracite is designed to provide a restful night's sleep down to a 22°F limit. Finished in a limited edition 25th-anniversary alpenglow print, it’s a reliable, eco-friendly companion for any outdoor outing.
| Regular | Long | |
|---|---|---|
| Total Weight | 2lb 12oz | 3lb 1oz |
| Total Fill Weight | 30oz | 34oz |
| ISO Comfort | 32°F | 32°F |
| ISO Limit | 22°F | 22°F |
| Compressed Bag Size | 9" x 9" | 9" x 11" |
| Stuff Sack Size | 14L 8" x 17.5" | 21L 9" x 20" |
| Max User Height | 6' | 6' 6" |
| Shoulder Girth | 60" | 63" |
| Hip Girth | 54" | 57" |
| Foot Girth | 36" | 39" |
| Shell | Recycled polyester ripstop with water-repellent finish without intentionally added PFAS |
|---|---|
| Lining | Recycled polyester with water-repellent finish without intentionally added PFAS |
| Fill | Fireline Pro Eco Recycled Synthetic Insulation is made with multi-denier, short-staple fibers with high loft to efficiently trap heat. Silky fibers provide a soft feel and great compression for packability. |
| Construction | Shingled and offset quilt construction |
| Accessories Included | Stuff sack included |