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Marmot Hydrogen Sleeping Bag: 30 Degree Down

Item #MAR1118 | 14 in Stock

I can't figure out the difference between the Marmot Hydrogen...

By Ranked #1226 - Sleeping Bags January 7, 2009

I can't figure out the difference between the Marmot Hydrogen and Marmot Arroyo. Same temp. rating, not much difference in weight, but the Hydrogen is about $60 more. Worth the difference in price?

Helpful Votes: 0 Yes | 0 No

By Ranked #1314 - Sleeping Bags November 11, 2009

Beyond the slightly different down rating (850 vs. 800), the hydrogen also uses a somewhat lighter denier fabric than the arroyo. I have an arroyo and a helium (15F bag that is analogous to the hydrogen), and the helium stuffs much smaller than the arroyo. IMHO the $60 difference for the hydrogen is well worth it.

Helpful Votes: 0 Yes | 0 No

By Ranked #39 - Sleeping Bags March 10, 2009

The biggest difference is that the Arroyo is 800 fill down and the hydrogen is 850 fill down. The hydrogen is a bit more compressible than the Arroyo but only by 1 inch in diameter and 2 inches in length. The down fill is defined as the amount of space in cubic inches one ounce of down will expand or loft up. So an 800 fill down bag means that for every ounce of fill the bag will loft up 800 cubic inches.

Helpful Votes: 0 Yes | 0 No

Tech Specs:

Material:
[Shell] LightForce N-120R DWR; [lining] LightForce P-100 DWR Taffeta 
Insulation:
850+ fill goose down 
Shape:
Mummy 
Draft Collar:
Insulated draft tube 
Max User Height:
[Reg] 6ft; [Long] 6ft 6in 
Shoulder/ Hip/Foot Circumference:
[Reg] 62/58/40in (157/147/102cm); [Long] 64/60/42in 
Stuff Size:
Not specified 
Stuff or Storage sack:
Both 
Weight:
[Reg] 1 lb 9 ozs (709 g); [Long] 1 lb 12 ozs (794 g) 
Degree:
30F, -1C 
Recommended Use:
Ultralight summer camping 
Manufacturer Warranty:
Lifetime 
Country of Origin:
China 

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