The Big Agnes Anthracite 20 Sleeping Bag is a versatile, traditional mummy style bag designed for comfort across a wide range of adventures. Built for three season use, it provides dependable warmth after long days on the trail, making it a solid choice for Philmont treks, summer backpacking, and casual campouts alike.
Insulated with FireLine Pro Eco recycled synthetic insulation, the Anthracite 20 delivers reliable warmth even in damp conditions. Recycled shell and lining fabrics feature a water repellent coating without intentionally added PFAS, helping keep you dry while reducing environmental impact. Thoughtful design details like a contoured hood, draft blocking features, and smooth zipper operation make this bag comfortable, practical, and easy to live with in the backcountry.
• Traditional mummy shape balances warmth retention and lightweight performance
• FireLine Pro Eco recycled synthetic insulation provides warmth and compressibility
• Recycled shell and lining fabrics with water repellent finish without intentionally added PFAS
• Shingled and offset quilt construction improves heat retention
• Contoured hood follows the shape of your head for comfort
• Oversized no draft collar and no draft zipper help seal out cold air
• Insulated tube along upper hood opening reduces heat loss when cinched
• Low profile cordlock allows one hand hood adjustment
• YKK anti snag locking zipper for smooth and reliable use
• Two way zipper with zipper garage positioned on the left side
• Mate together left and right zip bags to share warmth
• Interior loops secure a sleeping bag liner for added warmth
• Exterior loops allow for hang drying or storage
• Stuff sack included
Regular Size Specs
• Total weight approximately 2 lb 12 oz
• Total fill weight approximately 30 oz
• Compressed size approximately 9 x 9 inches
• Stuff sack size 14 liters measuring approximately 8 x 17.5 inches
• Fits users up to 6 feet
• Shoulder girth 60 inches
• Hip girth 54 inches
• Foot girth 36 inches
• Works with any sleeping pad size or style
Long Size Specs
• Total weight approximately 3 lb 1 oz
• Total fill weight approximately 34 oz
• Compressed size approximately 9 x 11 inches
• Stuff sack size 21 liters measuring approximately 9 x 20 inches
• Fits users up to 6 feet 6 inches
• Shoulder girth 63 inches
• Hip girth 57 inches
• Foot girth 39 inches
• Works with any sleeping pad size or style