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Marmot - Helium

Remarkably light and compact, the legendary Marmot Helium delivers impressive insulation. Use it as a three-plus-season bag to substantially reduce your load while backpacking and mountaineering. Features like a curved baffle design that reduces the shifting of down increase the comfort and warmth of this 800-fill-power goose down bag. This is one of the most versatile ultralight bags out there; it is so light and compact that it's easy to bring along on any adventure.

Technical specifications & features

Weight Reg: 2 lbs 1 oz (935 g)
Long: 2 lbs 4.5 oz (1040 g)
Gender Men's & Unisex
Made in USA
Temp Rating º F 15° F
Temp Rating º C -9° C
EN Lower Limit (Men's Rating) 13.5° F / -10.3° C
EN Comfort (Women's Rating) 25.2° F / -3.8° C
Bag Style Mummy
Seasonal Usage Three Season
Insulation 800+ Fill Power Goose Down
Fill Weight Reg: 19.8 oz (560 g)
Long: 22 oz (625 g)
Bag Shell Material Pertex Microlight 20d 100% Nylon Ripstop DWR 1.03 oz/yd
Bag Lining Material 30d 100% Nylon DWR 1.09 oz/yd
Bag Length Reg: fits users up to 6 ft
Long: fits users up to 6 ft 6 in
Bag Loft 6 in
Circumference at Chest Reg: 61 in
Long: 63 in
Circumference at Hips Reg: 56 in
Long: 58 in
Circumference at Foot Reg: 39 in
Long: 41 in
Other Features • Anatomically Designed Footbox with Wrap-Around Construction increases Warmth
• Smooth-Curved Baffles Reduce Down Shifting. Nautilus Multi-Baffle Hood limits heat loss
• Filled and Finished in Rohnert Park, California
• Ultralight Pertex Microlight shell fabric
• Full Length Locking YKK Two Way Zipper with Zip-Guard Slider
• Fold-Down Second Zipper Provides added Ventilation, Easy Access. Anti-Snag Slider reduces Snagging
• Down Defender to Improve Water-Resistance in Wet Conditions
• Internal Stash Pocket
• Snagless Insulated Draft Tube
• Two Way Zipper Sliders
• Hood Drawcord
• Zipper Garage
• Stretch Tricot Baffles
• Two Hang Loops
• Stuff and Storage Sack Included
• EN Tested
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