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Big Agnes Anthracite 20 Sleeping Bag (-7C)

Big Agnes Anthracite 20 Sleeping Bag (-7C)
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The Big Agnes Anthracite 20° traditional mummy-style sleeping bag is designed to be taken anywhere and provide rest after a long day outside.

Stay cozy with FireLine™ Pro Eco recycled synthetic insulation and stay dry with recycled shell and lining fabrics featuring a PFC-free moisture repellent coating.

Lightweight enough to stuff in your pack for summer backpacking but comfortable enough for backyard campouts with the kids, this bag is so versatile and comfortable you’ll want to take it on every outing!

Big Agnes All-Gender Anthracite bags deliver technical, lightweight performance to excel on and off the trail with high thermal value, compressibility, and comfort wherever you go


PFC-free water repellent coating keeps you dry without the use of harmful chemicals


Traditional mummy shape allows for light weight and increased body heat retention


Contoured hood follows the shape of your head for a more comfortable fit


Oversized no-draft collar and no-draft zipper to keep the cold out


Low-profile cordlock lets you uncinch the hood with one hand


Insulated tube along upper hood opening seals out drafts when cinched


65"/165cm YKK #5 anti - snag locking zipper for a smooth, quick zip


Two-way zipper and Zipper Garage positioned on sleeper's left side of bag


Mate together left (All-Gender) and right (Women's) zip bags to share warmth with your tent mate


Interior loops secure a liner for added warmth - liner sold separately

Total Weight: Regular 1.25kg 2.75lb
Long 1.39kg 3.06lbs
Total Fill Weight: Regular 858g 30oz
Long 964g 34oz
Compressed Bag Size: Regular 23 x 23cm 9 x 9"
Long 23 x 28cm 9 x 11"
Stuff Sack Size: Regular 20 x 44cm 8 x 17.5"
Long 23 x 51cm 9 x 20"
Max User Height: Regular 183cm 6'
Long 198cm 6' 6"
Shoulder Girth: Regular 152cm 60"
Long 160cm 63"
Hip Girth: Regular 137cm 54"
Long 145cm 57"
Foot Girth: Regular 91cm 36"
Long 99cm 39"

Shell: recycled polyester ripstop with PFC-free water-repellent finish


Lining: recycled polyester with PFC-free water-repellent finish


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.


Shingled and offset quilt construction


Stuff sack included

Synthetic Sleeping Bag Care:




Keep your bag hanging if possible, or in its included mesh storage sack

Store in a cool, dry place away from heat sources




Even dirtbags wash their bags!

Machine wash in a washing machine WITHOUT AN AGITATOR, agitators are likely to cause damage to your gear

Oversized bags require oversized machines, you may need to go to a laundromat to wash your larger bags

Wash on a warm, gentle cycle

Use gear specific soap, we recommend Nikwax Tech Wash

Tumble dry low heat


Do not use fabric softeners

Do not bleach

Do not iron

Do not dry clean


Repairs and Warranty:


All Big Agnes gear is guaranteed against manufacturing or material defect. We do not warranty products damaged from normal wear and tear, alteration made by owner, misuse, accidents, or damages caused by uses other than intended. Damage due to misuse, normal wear and tear, or improper care may be repaired, at the discretion of Big Agnes, at a reasonable charge. Gear returned for repair

Part Numbers

Option UPC MPN Store SKU
Regular 841487144128 BTMA20RL23 SLE562156283
Long 841487144135 BTMA20LL23 SLE605882383