Anthracite 20 Synthetic Sleeping Bag

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A well-priced four-season bag that will get used out on the trail and, at home, on the couch too.

Big Agnes says: 

Our 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 a roomier mummy shape than a traditional bag design. 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!

Our Verdict

Synthetic bags are go-anywhere bags; they survive well in damp conditions and keep you warm when they are wet. This is an incredibly reasonably priced bag for a sleep system capable of keeping you warm at -7, it’s not an “ultra-light” sleeping bag, but it’s a reasonable weight for a four-season sleep system. It’s not a bag I would take out in the depths of winter, but I would be happy to take it out on milder winter nights.

It’s a mummy shape and is of generous size; you have plenty of room to toss and turn, “no draft collars” and a baffle running the length of the zip means you won’t be displacing hot and cold air, so you stay nice and toasty.

– Reviewed by Ultralight Outdoor Gear

Features

• Our traditional down mummy bags deliver technical, lightweight performance to excel on and off the trail with high thermal value, compressibility, and comfort wherever you go
  
• Traditional mummy shape allows for lightweight and increased thermal value
  
• Contoured hood follows the shape of your head for a more comfortable fit
  
• Oversized interior anti-draft collar
  
• Low-profile cordlock lets you uncinch the hood with one hand
  
• Insulated tube along upper hood opening seals out drafts when cinched
  
• Anti-snag zipper for a smooth, quick zip
  
• Left zip, 65”/165cm YKK #5 anti – snag locking zipper
  
• Two-way zipper
  
• Zipper Garage
  
• Liner loops
  
• Mate together left and right zip bags
  
• Storage sack & stuff sack included
  
• No-draft collar and no-draft zipper
• Exterior loops for hang drying or storage

Specifications

Temperature Ratings

• 20 ̊F/ -7 ̊C

Regular

• Our weight: 1236g (excludes storage bags)
• Fits: 183cm / 6ft
• Brands bag weight: 1.25kg / 2lbs 12oz
• Fill Type: FireLine™ PRO Eco (Synthetic)
• Total fill weight: 858g / 30oz
• Compressed size: 23 x 23cm / 9″ x 9″
• Stuff Sack Size: 20 x 44cm/ 8″ x 17.5″

Long

• Our weight: N/A g (excludes storage bags)
• Fits:198cm /6’6″
• Brands bag weight: 1.39kg / 3lb 1oz
• Fill Type: FireLine™ PRO Eco (Synthetic)
• Total fill weight: 964g / 34oz
• Compressed size: 23 x 28cm / 9″ x 11″
• Stuff Sack Size: 23 x 51cm/ 9″ x 20″

Material & Construction

• Shell: Recycled 20D 400T polyester ripstop with PFC-free water-repellent finish
• Lining: Recycled 50D 300T polyester pongee with PFC-free water-repellent finish
  
• Fireline™ Pro 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

Help & advice:

• The Ultimate Guide to Lightweight Sleeping Bags
• Time-Saver Guide to Choosing a Sleeping Bag
• The EN13537 Standard
• About Big Agnes