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Big Agnes - Lost Lake SL (Fall 2015)

Big Agnes' Lost Lake SL is a traditional mummy bag with some not-so-traditional features. These bags are insulated with 700-fill DownTek™ water repellent down and constructed with Insotect Flow™ patented technology. Their mummy shape and lightweight materials will get you wherever you want to go, fast and dry. The most technical old-school sleeping bags ever!

Technical specifications & features

Weight Reg: 2 lb. 1 oz. / Long: 2 lb. 4 oz.
Gender Men's & Unisex
Temp Rating º F 30º F
Temp Rating º C -1° C
Bag Style Mummy
Seasonal Usage Three Season
Insulation 700 fill DownTek™ water repellent down
Fill Weight Reg: 14.5 oz / Long: 16 oz
Bag Shell Material Durable nylon fabric shell
Bag Lining Material Nylon Taffeta lining
Bag Length Regular fits up to 6ft.
Long fits up to 6ft. 6in.
Bag Stuff Size 8" x 17.5"
Circumference at Chest Reg: 60" / Long: 62"
Circumference at Hips Reg: 54" / Long: 56"
Circumference at Foot Reg: 36" / Long: 38"
Other Features Traditional mummy shaped bag without the pad sleeve
70"/178cm YKK #8 zipper
Interior fabric loops for sleeping bag liners
Mate together left and right zip bags
Mesh storage sack & nylon stuff sack
No-draft collar seals around neck to keep cold air from sneaking in
No-draft zipper tube insulates along the length of the zipper
Flow™ Construction: Insotect Flow™ 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.
LEFT OR RIGHT ZIPPER? When you are in the bag, on your back, the right zip will be on your right side, left zip on your left side

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