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Marmot Never Summer Sleeping Bag: 0 Degree Down

Item #MAR1134 | 21 in Stock

What really is the difference between 600 and 800 fill down....

By Ranked #363 - Sleeping Bags November 2, 2008

What really is the difference between 600 and 800 fill down. I noticed that this bag is rated to 0 and it costs 100+ less than 800 fill bags that are rated to 0. There isnt much difference in the weight so what is the cause for the price hike.Also thanks for explaining what the fill numbers mean I have never understood that.In response to the answer below... yeah but the bags are all rated to 0 and weigh the same despite the extra loft? For example the Marmot Couloir which is rated to 0 but costs about 180 more and weighs the same. I dont know I guess i am just trying to understad the benefits of paying that extra 180.00 because if there are some I dont mind doing it but I dont want to just because its costs more so therefore should work better.

Helpful Votes: 0 Yes | 0 No

By Ranked #1428 - Sleeping Bags February 25, 2009

Fill is measured in cubic inches per ounce. That means that a bag that weighs the same as this will loft to 34800 cubic inches with 600 fill or 46400 with 800 fill. That extra 12000 cubic inches of loft means that for the same weight, much more air is trapped and the bag is a lot warmer. More warmth for the weight, plus higher fill compresses more, hence the price difference.Yeah, it was explained to me that the higher number was just more finely... fluffed feather. This will produce many more smaller air pockets in the down and increase the volume while maintaing the same density (weight). Also that as long as it is 'poofy' that was ok for the normal people. That the higher down number (+750) really matter to the Everest type expedition when your life depended on the quality of your gear. But in that case you just spent $40,000 to go o the expedition what another $600 for a sleeping bag, right. Most vendor don't talk about that part, hope that helped. But please do your research.

Helpful Votes: 0 Yes | 0 No

Tech Specs:

Material:
Omni N-140 nylon 
Insulation:
600+ Fill goose down 
Shape:
Mummy 
Draft Collar:
Yes 
Max User Height:
[Reg] 6ft (183cm); [Lng] 6ft 6in (196cm) 
Shoulder/ Hip/Foot Circumference:
[Reg] 62 / 58 / 40in (157 / 147 / 102cm); [Lng] 64 / 60 / 42in (162 / 152 / 107cm) 
Stuff Size:
7.5 x 15in (19 x 38cm) 
Weight:
[Reg] 3lb 10oz (1644g); [Lng] 3lb 14oz (1758g) 
Warranty:
Lifetime 
Degree:
0F (-18C) 
Recommended Use:
Winter camping, spring mountaineering 

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