Helium Sleeping Bag

Marmot Helium Sleeping Bag

The Marmot Helium Sleeping Bag is an ultralight and packable down sleeping bag for backpacking, thru-hiking, and alpine tours in sub-zero temperatures. It is filled with RDS-certified 800+ fill power goose down with ExpeDry™ water-repellent treatment, which helps the down maintain its performance better in damp conditions and shortens drying time. The mummy-shaped construction, anatomical footbox, and gently curved baffles provide efficient heat distribution and reduce the risk of down shifting. The Helium is available in both Regular and Long, with the Long size suitable for taller users up to 198 cm.

Features

• Ultralight down sleeping bag for backpacking, thru-hiking, and alpine tours
• Warm model for overnight stays in sub-zero temperatures
• 800+ fill power RDS-certified goose down provides excellent warmth-to-weight ratio
• ExpeDry™ water-repellent treatment improves down performance and reduces drying time
• ISO-tested temperature rating for reliable comfort indication
• Mummy shape reduces unnecessary volume and helps retain heat
• Anatomically designed footbox with wrap-around construction for better warmth
• Gently curved baffles reduce down shifting and provide more even insulation
• Anti-snag slider on the main zipper reduces the risk of fabric getting caught
• Extra fold-down zipper provides ventilation and easier entry and exit
• Small pack volume makes the sleeping bag convenient for overnight packing
• Stuff sack and storage bag included
• Made with recycled materials and bluesign® approved material

Specifications & materials

• Color: Arctic Navy/Dark Azure
• Shape: Mummy
• Zipper: Left
• Recommended use temperature: -9 °C
• Temperature, ISO Comfort: -3 °C
• Temperature, ISO Limit: -9 °C
• Temperature, ISO Extreme: -28 °C
• Insulation: 800+ fill power RDS goose down with ExpeDry™
• Outer material: 100% recycled nylon
• Lining: 100% recycled nylon plain weave
• Technologies: ExpeDry™ and Pertex® Shield
• Sustainability details: bluesign® approved material, recycled material, and Responsible Down Standard
• Use: Backpacking, thru-hiking, alpine tours, and lightweight overnight stays

Sizes

If you order before 10:30 AM on a weekday, the order is usually shipped the same day. In-store pickup can be made on the same day during store opening hours if the item is in the store's stock.

Free shipping on orders over 595 SEK (up to 20 kg). Free returns. 14-day right of withdrawal