Big Agnes Mystic 15°
Fill: 775 fill down
Temperature Rating: 15 degrees F
Weight: 2 lb., 4 oz.
Price Paid: $200
I've had the opportunity to test this bag at 12,800 feet in Colorado's San Juans in August, among other places. The bag is exceptionally roomy for bigger guys (I'm 5-11, 215 lbs, size 46 chest--tried the Zirkel first but found it far too confining in the chest and shoulders).
The draft collar is nice and adds a little warmth. You must use a sleeping pad with this bag since it has no fill in the bottom half (I use BA's REM Insulated Air Core). This design is both good and bad. Good, in that it's almost like being in your bed at home under a blanket, and your bag won't slide off the pad during the night. Bad, in that the bag won't move with you if you change positions frequently (though it's so roomy that this isn't a big issue for me).
Also, I found that on very cold alpine nights (high teens/low 20's) I could detect cold spots where the bag joins the pad. There's supposed to be enough overlap to prevent this, but it's not perfect. This, combined with the low efficiency (due to its size), I think the 15-degree rating is a bit optimistic. It's more like a 20-25 degree bag, though I am an average-to-cold sleeper and like to be toasty.
That aside, it is pretty light, packs small, and is well-made. Overall, a good bag.
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Here's what other sites are saying:
The Big Agnes Mystic Sleeping Bag is filled with light, compressible 800 fill goose down and weighs only 2 lb 7 oz. Like all Big Agnes sleeping bags, the Mystic has an integrated pad sleeve so you never roll of your pad again. Removig the insulation on the bottom also reduces weight since compressed down has no insulating effect. The Mystic is an upgraded version of the popular Big Agnes Lost Ranger Sleeping Bag. We recommend the Big Agnes Insulated Air Core Pad for use with the Mystic sleeping bag.
Features: ntegrated full pad sleeve. Never roll off your pad again Rectangular shape offers more room in foot box and shoulders Recycled mesh storage sack & nylon stuff sack included Built in pillow pocket holds a fleece or Big Agnes pillow 70" YKK #5 zipper. Mate together our left and right zip bags with same size zipper No-draft collar seals around neck to keep cold air from sneaking in No-draft wedge insulates the connection between the bag and pad No-draft zipper tube insulates along the length of the zipper Shell Fabric: Pertex Quantum rip-stop nylon. Featherweight, high thread-count fabric that is soft as silk with a small packing volume. WR surface treatment to repel water Lining: Nylon taffeta Flow(TM) Construction: Insotect Flow(TM) is a flow-optimized insulation system that delivers uniform heat distribution and natural body contouring through its revolutionary baffle design. Flow Construction eliminates lateral and vertical down shifting by using vertical chambers with Flow Gates to regulate fill positioning and density. Strategically placed Flow Gates minimize vertical down shifting while vertical chambers minimize lateral shifting. With continuous vertical Flow chambers in place of traditional side seams, Flow bags eliminate potential cold spots which can occur with side seams. Vertical baffles now flow with your body for more rapid and uniform body heat distribution. regular/up to 5'10" long/up to 6'6" Pad Size 20"x72" 20"x78" Color black/green black/green Fill Type 800 fill goose down 800 fill goose down Fill Weight 15oz 16.5oz Bag Weight 2lb 4oz 2lb 7oz Shoulder Girth 70" 73" Hip Girth 66" 69" Foot Girth 54" 55" Stuff Sack Size M-8"x17.5" M-8"x17.5" Compressed Bag Size 8.5"x8" 8.5"x8.5"
- Mountains Plus
Free Shipping. Big Agnes Mystic 15 Degree Sleeping Bag (Spring 2008) Specifications for the Mystic 15 Degree Sleeping Bag by Big Agnes: 775 fill goose down Weight: (reg) 2 lb 4 oz (long) 2 lb 7 oz Pad Size: (reg) 20in. x 72in.rec. (long) 20in. x 78in.rec. Features: Integrated pad sleeves. Never roll of your pad again No-draft yoke seals around neck to keep cold air from sneaking in 70in. YKK #8 zipper. Mate together any of theri left and right zip bags with a 70in. zipper Rectangular shape offers more room in foot box and shoulders Cotton storage sack & nylon stuff sack included Built in pillow pocket holds a fleece or Big Agnes pillow Interior fabric loops for sleeping bag liners No-draft wedge insulates the connection between the bag and pad No-draft zipper tube insulated along the length of the zipper
When you're trying to minimize space and maximize warmth, the Big Agnes Mystic 15F Sleeping Bag is just the ticket. Even though this three-season sleeping bag weighs in at a paltry 2lb 4oz (regular), it doesn't skimp on comfort. High-loft 775-fill goose down retains your body heat, a rectangular shape adds room in the foot box and shoulders, and a no-draft yoke seals blocks cold drafts. Meanwhile, the WRM nylon shell material resists water, blocks wind, and breathes well. Big Agnes integrated a non-insulated sleeve that fits a 20-inch wide rectangular sleeping pad. This reduces weight and bulk and ensures you never roll off your pad again.
- Backcountry Outlet