Marmot CWM MemBrain -40 Degree Sleeping Bag


Welcome to the outer limits, astronauts. High-quality 800 fill goose down and MemBrain® waterproof, breathable fabric form the core of this portable environment--designed to deliver restful sleep, down to -40degrees F, in the harshest alpine environments. Over-engineered with sturdy reinforced linings and countless baffles for a lifetime of dependable comfort and protection.

  • Certified 800 Fill Goose Down - Independently Tested and Certified by International Down and Feather Laboratory in Salt Lake City, Utah.
  • Marmot MemBrain® Waterproof/Breathable Fabric
  • 9-Baffle Chest Section - Baffles Run Vertically in Core for Maximum Down Control. Rolling from Side-to-Side Won't Shift the Down
  • Reinforced Foot Box Lining - To Handle the Extra Abuse of Boot Liners and Water Bottles
  • "Feely" Draw Cords - Ease Nighttime Cord Fumbling
  • 11-Baffle Foot Box - Baffles are Vertical to Keep Down Around Your Feet
  • Down-Filled Draft Tube - Eliminates Cold Leaks Through the Zipper
  • Ground-Level Side Seams - Eliminates Drafts
  • Hidden Draft Tube Pocket - Inverts Into Draft Tube and Used to Store Watch or Alarm and Stay Out of Our Face
  • Nautilus 6-Baffle Hood - 6 Chambers of Down Around Head for Better Down Control and Fit, Hood Cord is Positioned for Easy Access
  • Stretch Tricot Baffles - Provide Ultimate Strength, Durability and Bag Life
  • Stuff and Storage Sack Included
  • Velcro®-free Down-filled Collar - Keeps Warm Air Trapped in Your Bag; Collar is a Full 6-inch Baffle Width Integrated with the Draft Tube
  • Velcro®-free Face Muff - Keeps the Drawcord and Zipper Away from Your Face
  • Zipper Guards - Help Repel Biting Zipper Coils
Specs Reviews

Regular: 6'0"
Long: 6'6"

  • Weight: Regular - 4 lbs 8 oz / Long 5lbs
  • Fill Weight: 44 oz / 1247 g
  • Temperature Rating: -40F / -40CMain
  • Material: MemBrain® 2L 100% Nylon Ripstop 2.3 oz/yd
  • Lining Material: 100% Nylon WR 1.4 oz/yd
  • Insulation Material: 800 Fill Goose Down

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  • CWM MemBrain -40 Degree Sleeping Bag

    Real Red/Fire

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