Page Type Gear Review
Object Title CWM
Manufacturer Marmot
Page By fmajor
Page Type Jan 22, 2003 / Jan 22, 2003
Object ID 636
Hits 3878
Marmot Cwm

The big dude. Marmots mega bag built for the extreme conditions of the North and South Poles, Alaska, and the Himalayas.

Sizes: Regular: 6'0" Long: 6'6"

Avg. Weight: 4 lb 10oz / 2098g

Shell: Twilight DryLoft N-142R DWR finish

Lining: Gossamer Micro N-130R WR finish

Insulation: 900 Fill Goose Down

Temperature range: -40° F/ -40° C


New Sarcophagus™ shape

New Nautilus 6-Baffle Hood

Down-filled muff collar which is a full 6" baffle width

Spacious 11-Baffle Foot Box with center V baffle

Draft tube pocket makes small items easy to reach-keep your alarm where you can't ignore it

Down filled collar with re-positioned easy access drawcord

Zipper Guards keep zippers from snagging

Down Fly Strip stabilizes down in muff and draft tube

Hook-and-Loop-Free Face Muff doesn't scratch against the skin

Two hang loops on the outside and two in the inside for drying and airing your bag

Vertical baffle design

Unique baffle positioning over the torso

Reinforced foot box lining for extra durability when warming boot liners and water bottles

45-Degree Slant Box Baffles

Stretch Tricot Baffles for strength and longevity

Left or right zipper option; able to mate to different bags

Stuff sack included; easy way to transport your bag

Cotton storage bag included


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meepers - Dec 22, 2003 5:51 pm - Voted 5/5

Untitled Review
This bag rocks! It is the warmest bag I have ever owned. There is ample room in the foot box so you can wear your boot liners or booties at night. I bought two of them last year. One was new and one had been washed once. The new one was a little warmer but both of them kept us warm at 30F below zero all night long. Very light and will compress down to almost nothing. I think it's to much bag if the temp is above zero. It's gonna cost a little but well worth it

fmajor - Jan 16, 2004 4:19 pm - Voted 5/5

Untitled Review
I have used this bag on many trips over the last 6 years from the Great Lakes Region to most recently Mt. Adams in the Presidential Range. However, I have not had it out in cold enough temps to truly evaluate it at it's comfort minimum. It has seen multiple uses around and somewhat below zero and as low as approximately -15F. My thermometer didn't go below -10F, but the -15F is suggested because that night was colder than previous nights on the same trip that bottomed the thermometer at -10F. In all cases I had to unzip it a little bit to cool off. It is the warmest bag i have ever used, including other bags with similar comfort ratings which were horribly optimistic.

The DryLoft shell allows easy removal of condensation frost and keeps the insulation nice and dry. I also like how the hood cinches around my head and face, allowing me to leave a little breathing hole.

The bag lofts to just over 10 inches and measures the same (as of last week when i was re-checking it) as when i bought it 6 years ago. It regains full loft from compression in a reasonable time. I store it completely lofted in a warm, dry place.

I have the Regular length (I'm 5' 11") and it has sufficient room in the reinforced footbox for boot liners or misc. clothes (i usually put clothing under me and boot liners in the foot section). I use a VBL and this system has worked very well for me. It is a large bag, but with some home-made compression straps added to the sleeping bag compartment in my pack, it compresses nicely.

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