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Gear Question
I can't figure out the difference between the Marmot Hydrogen...
By amandashan1102056
Ranked #541 - 55 to 30 Degree Down 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?
View Details: Marmot Hydrogen Sleeping Bag: 30 Degree Down
Helpful Votes: 0 Yes
By naphas1595551
Ranked #322 - 55 to 30 Degree Down 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
By David Stancil
Ranked #213 - 55 to 30 Degree Down 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
Tech Specs:
- Material:
- [shell] Pertex Microlight mini ripstop, DWR coating; [lining] polyester mini ripstop (100% recycled, 20D), DWR coating
- Insulation:
- 850+ fill down
- Shape:
- mummy
- Draft Collar:
- no, draft tube
- Max User Height:
- (regular) 6 ft, (long) 6 ft 6 in
- Shoulder Circumference:
- (regular) 62 in, (long) 64 in
- Hip Circumference:
- (regular) 58 in, (long) 60 in
- Foot Circumference:
- (regular) 40 in, (long) 42 in
- Stuff Size:
- 12 x 6 x 6 in
- Stuff Sack:
- yes
- Storage Sack:
- yes
- Degree:
- 30 F
- European Norm Comfort Rating:
- 39.2 F
- European Norm Lower Limit Rating:
- 29.8 F
- Weight:
- (regular) 1 lb 9 oz, (long) 1 lb 12 oz
- Recommended Use:
- summer camping
- Manufacturer Warranty:
- lifetime
Change me.



