Item #: 331852371

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 –40°F, in the harshest alpine environments. Over-engineered with sturdy reinforced linings and countless baffles for a lifetime of dependable comfort and protection.

NOTE: Find in Store Inventory levels are continuously changing. Please contact store to confirm availability is as shown.


  • Filled with Certified 800 Fill Power Goose Down
  • Pertex® Shield Waterproof/Breathable Fabric
  • Marmot Cross Baffle Construction Prevents Down Shifting and Colds Spots
  • 11-Baffle and Wrap-Around Foot Box Increases Warmth
  • Reinforced Foot Box Lining
  • Nautilus 6-Baffle Hood
  • Down-Filled Draft Tube


  • Materials: Pertex Shield 30d 100% Nylon 2.3oz/yd.

Shipping Info:

  • Leaves the warehouse in 1-7 business days depending on order volume.
  • Items may be returned within 60 days of the order date to an Atmosphere retail store or an Atmosphere warehouse. Items must be returned unused/unworn and electronics unopened. See Online Return Policy and Return Instructions for more information.
  • Note: Shipping restrictions may apply based on location and product size.


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