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The facts at a glance
Marmot Helium Long
The Helium Long by Marmot is the ideal companion for demanding outdoor adventures. With its 800+ fill power goose down and ExpeDRY technology, this high-quality down sleeping bag offers outstanding warmth with minimal weight. The water-repellent Pertex® outer shell provides reliable protection against moisture, while the anatomically shaped mummy construction and specially designed foot area ensure optimal heat retention.
Thanks to its well-thought-out design—featuring a main zipper with a jam-proof mechanism and an additional ventilation option—the sleeping bag is easy to use and provides extra air circulation when needed. The curved baffles prevent the down fill from shifting and ensure even heat distribution. With a compact pack size of 36 x 18 cm and a weight that’s ideal for longer trekking trips and expeditions, the Helium Long is a reliable companion in temperatures as low as -9°C.
The package also includes a stuff sack and a storage bag, which make it easier to transport and store. Whether you're camping, mountain climbing, or on an expedition—the Helium Long offers comfort and protection during the cold season.
Thanks to its well-thought-out design—featuring a main zipper with a jam-proof mechanism and an additional ventilation option—the sleeping bag is easy to use and provides extra air circulation when needed. The curved baffles prevent the down fill from shifting and ensure even heat distribution. With a compact pack size of 36 x 18 cm and a weight that’s ideal for longer trekking trips and expeditions, the Helium Long is a reliable companion in temperatures as low as -9°C.
The package also includes a stuff sack and a storage bag, which make it easier to transport and store. Whether you're camping, mountain climbing, or on an expedition—the Helium Long offers comfort and protection during the cold season.
Product details
- Comfort Temperature:
- -3°C
- Limit temperature:
- -9°C
- Extreme temperature:
- -28°C
- Season:
- Fall-Winter
- Isolation:
- insulation_down
- Chamber construction:
- Curved, smooth baffles
- Zipper:
- Left zipper with an additional, fold-down second zipper
- Bulking power:
- 800 Cuin
- Filling weight:
- 620g
- max. body height:
- 198cm
- Pack size:
-
- Length: 36cm
- Width: 18cm
- Weight:
- 1.06kg
- Widths:
-
- Shoulder: 160cm
- Knee: 147cm
- Feet: 117cm
- Equipment:
-
- Extra insulated foot box
- Ergonomically shaped hood
- Water repellent down
- incl. compression sack
- incl. storage bag
- Mummy cut
- Small pack size
- Technologies:
- Pertex® Shield, ExpeDry
- Insulation:
- 800+ Fill Power Goose Down ExpeDRY™
- Hip circumference:
- 147 cm
- Pack size:
- 36 x 18 cm
- Recommended use temperature:
- -9°C
- Zipper position:
- Left Zip
- Features:
-
- Ventilation zipper
- Especially compact packing size
- Breathable
- Water repellent
- 800+ fill power goose down with ExpeDRY for quicker drying
- Main zipper with anti-snag slider and fold-down second zipper provides added ventilation and easy access
- Anatomically designed footbox with wrap-around construction increases warmth
- Smooth, curved baffles reduce down shifting
- ISO tested for reliable temperature rating
- Stuff and storage sack included
- Ultra-lightweight and effortlessly stowable 800 fillpower goose down with water repellent ExpeDRY finish that improves performance and durability and reduces drying time
- Main zipper with anti-pinch protection and fold-down second zipper for extra ventilation and effortless entry and exit
- Anatomically designed foot area with wrap-around construction for added warmth
- Soft, curved baffles reduce down slippage for increased durability and more even heat distribution in the sleeping bag
- ISO tested for temperature and comfort range
- Storage bag included
- DWR (durable water repellent finish)
- Water resistant down
- Quick drying
- Goose down with 800+ fill power and ExpeDRY technology for faster drying and reliable performance
- The main zipper, featuring a zipper slider with anti-pinch protection and an additional, fold-down second zipper, ensures better ventilation and easy access.
- Curved, smooth baffles prevent the down from shifting.
- ISO-certified for reliable temperature readings
- Packing sack and storage bag included
- Materials:
-
- Interior material: Innenmaterial
- Features:
- water-repellent, breathable, quick-drying, lightweight fabric, built-in UV protection, packs down very compactly, DWR-treated (Durable Water Repellent)
Summary
| Gender: | Men |
| Activity: | Camping, Expeditions, Hiking, Leisure, Trekking, Urban & Work |
| Fabrics: | Down, DWR impregnated, Nylon, Pertex® |
| Characteristics: | breathable, isolating, lightweight, quick drying, stretchable, water repellent |
| Season: | Winter |
| Features (Sleeping Bags): | Hood, insulated feet box, Mummy cut, Storage sack |
