It's the combination of light weight, small pack size, excellent construction and reasonable cost make it a great value choice for 3 season backpacking. The Helium is mummy style sleeping bag featuring 800+ fill power hydrophobic down, a full length zipper, lots of loft and an extremely effective hood design.
The popular Helium packs smaller than a loaf of bread, weighs less than two pounds and keeps you warm down to 15°, making it ideal for lightweight mountaineering and backpacking.
Part of Marmot's ultralight range of sleeping bags, the Helium offers a superb balance of quality, low weight, packability, and performance versus cost. It's comparable to many more expensive products, as it is lighter and more compressible than almost all of its competitors.
The Marmot Helium uses 800+ fill power down protected with Marmot's Down Defender to help the down to stay dry longer, loft better when damp and dry more quickly than untreated down. The Pertex Microlight fabric offers a combination of lightweight and good durability plus it's DWR coating will offer some water resistance. The fabric feels really soft which allows the down to loft freely and the slightly brushed feel of the Microlight lining fabric is extremely comfortable against your skin.
- Reviewed by Ultralight Outdoor Gear
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