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