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Big Agnes Mystic UL 15 Down Sleeping Bag

$284.94 - $302.44
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No more cramming your sleeping bag into your overnight kit or feeling like your partner put rocks in your backpack, with the Big Agnes Mystic UL 15 Down Sleeping Bag you can leave your worries behind. Designed to let you go fast and light while keeping all of the features that make Big Agnes sleeping bags so popular, the Mystic is perfect for those who want to sleep outside, without feeling like they spent the night in the dirt. Built with 850 fill DownTek™, this ultralight sleeping bag not only has a high warmth to weight ratio but is also full of water repellent feathers to keep you warm no matter what the weather brings. An integrated Flex Pad Sleeve keeps you from rolling off of your pad in the middle of the night while the Pillow Barn keeps your camp pillow where it belongs and ensures that you don't wake up with a sore neck. Weighing in at two pounds exactly and with a packed size of 6" x 7", this bag is ready to hit the trail.


  • An ultralight sleeping system that doesn't compromise on comfort
  • Streamlined silhouette allows the bag to drape around you, increasing insulation performance
  • Free Range Hood design – gives you the freedom to lift your head while snuggled in the hood
  • Pillow Barn - Keeps your pillow from slipping away during the night
  • Low profile cordlock lets you un-cinch the hood with one hand
  • Small, regular, and long bags fit 20" - 25" wide pads
  • Free Range Footbox - gives your feet plenty of wiggle room
  • Flex Pad Sleeve stretches to allow you to use pads of varying widths and connects your bag to your pad
  • Rectangular shaped bag
  • 60” / 152cm YKK #5 anti snag locking zipper - Small bags
  • 65” / 165cm YKK #5 anti snag locking zipper - Regular bags
  • 70” / 178cm YKK #5 anti snag locking zipper - Long bags
  • Zipper Garage
  • Mate together left and right zip bags
  • No-draft collar, No-draft wedge, No-draft zipper
  • Interior fabric loops for sleeping bag liners
  • Exterior loops for hang drying or storage
  • Mesh storage sack & polyester rip-stop stuff sack 

Materials and Construction

  • Nylon rip-stop shell fabric with a water repellent finish
  • Nylon Taffeta lining
  • Insotect Flow™ construction
  • 850 fill DownTek™ water repellent down 


  • Temp Rating: 15° F
  • Bag Size: Small, Regular, or Long
  • Fits Up To: Small - 5'5"; Regular - 5'10"; Long - 6'6" 
  • Pad Size: Small - 20-25"x 66"; Regular - 20-25"x72"; Long - 20-25"x78"
  • Bag Weight: Small - 1 lb 13 oz; Regular - 2 lbs ; Long - 2 lbs 5 oz
  • Insulation: 850 Fill Downtek
  • Compressed Size: Small - 5" x 6"; Regular - 6" x 7"; Long - 7" x 8"
  • Stuff Sack Size: 8" x 17.5"