Snow Goose EX -40

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The Snow Goose is the world’s premier high altitude expedition sleeping bag. This model shares many design elements with the warmer Snowy Owl but delivers superb warmth at a lighter weight. We eliminated the second (inside) zipper and scaled back the hood and shoulder regions, but retained the efficient contoured shape that keeps full loft around the head for maximum warmth.

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  • Expedition Mummy shape with #5 YKK two-way zipper with locking sliders
  • Pertex Shield EX water-resistant/breathable laminate shell with DWR
  • Pertex 30 denier taffeta lining
  • Permanent collar with EX facing to prevent breath condensation from entering the bag
  • Side-block baffles maintain a 60:40 top to bottom insulation distribution
  • 3D contoured hood wraps a layer of down around your head
  • Generous draft tube prevents cold air from seeping past the zipper
  • Large side walls ensure even insulation all around
  • Overlapping dual-webbing zip guard guides the fabric away from the zipper
  • Tuck-stitch construction hides the baffle threads and prevents moisture from wicking through to the inside
  • Includes storage bag & stuff sack


Temperature Rating -40ºF / -40ºC
Dimensions 64" / 60" / 39"
Length Reg: 6' 0" / 183 cm
Long 6' 6" / 198 cm
Sleeping Bag Shell Fabric Pertex® Shield EX waterproof/breathable
Lining Fabric Pertex® 30 denier nylon taffeta
Fill Power 850+ Goose Down
Fill Weight Reg 42.7 oz / 1,211 g
Long 45 oz / 1,276 g
Average Weight Reg 4 lb 3 oz / 1,896 g
Long 4 lb 7 oz / 2,015 g
Packed Size 9" x 21"
Zip Side Left
Country of Origin Manufactured in the USA from imported materials
Expedition Wide Mummy Sleeping Bag Sizing

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