Helium 15° Sleeping Bag - Long
Helium 15° Sleeping Bag - Long
Clearance - Final Sale
Final Sale

This item cannot be exchanged or returned. Valid while supplies last. All sales final.

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Clearance - Final Sale
Final Sale

This item cannot be exchanged or returned. Valid while supplies last. All sales final.

 Free 3-day shipping and free returns on all orders

 Backed by Marmot's Lifetime Warranty

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Product Details

  • Fold-Down Second Zipper Provides added Ventilation and Easy Access, Main Zipper Anti-Snag Slider reduces Snagging
  • 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
  • Certified 800+ Fill Power Goose Down
  • EN Tested
  • Ultralight Pertex Quantum 20d 100% Nylon Ripstop DWR 1.03 oz/sqyd
  • Full Length Locking YKK Two Way Zipper with Zip-Guard Slider
  • Down Defender to Improve Water-Resistance in Wet Conditions
  • Nautilus Multi-Baffle Hood
  • Internal Stash Pocket
  • Snagless Insulated Draft Tube
  • Hood Draw Cord
  • Two Way Zipper Sliders
  • Zipper Garage
  • Stretch Tricot Baffles
  • Two Hang Loops
  • Stuff and Storage Sack Included
Remarkably light and compact, the Helium 15° Sleeping Bag - Long delivers impressive insulation during three-season backpacking and mountaineering treks. Featuring Pertex® Microlight on the exterior, its lofty 800-fill-power-down insulation and water-resistant Down Defender treatment will keep you warm and dry. After an epic day on the mountain, give your feet a rest in the roomy wrap-around footbox. Smooth, curved baffles help keep the fill in place, while the nautilus multi-baffle hood with a drawcord, snagless insulated draft tube, and full-length two-way zipper with a zip-guard slider limit heat loss. If the interior gets too warm, use the fold-down secondary zipper to get some air. Tuck small items into the internal stash pocket.
  • Bag Temperature Fahrenheit: 15° F
  • Bag Temperature Celcius: -9° C
  • EN Comfort Rating: 22.6°F / -5.2°C
  • Product Weight: 2lbs 4.5oz (1040g)
  • Main Fabric: Pertex 20d 100% Nylon R/S 1.03oz/yd
  • Lining Fabric: 30d 100% Nylon DWR 1.09 oz/yd
  • Insulation Material: 800+ Fill Power Goose Down
  • Zipper Location: LZ
  • Shoulder Girth: 63in (160cm)
  • Hip Girth: 58in (147cm)
  • Footbox Size: 41in (117cm)
  • Stuff Sack Size: 7 x 14in | 17.8 x 35.6cm
  • Compressed Volume: 457.7ci » 7.5 liters
  • Pack Volume: 457.7ci » 7.5 liters
  • Style Number: 23230
Rated 5 out of 5 by from Crazy sick bag! Awesome sleeping bag. Very light and packs down smaller than I had expected. Helps toward some fun fast packing adventures!
Date published: 2020-05-20
Rated 5 out of 5 by from Super light I’ve had this bag for 10+ years and has been a staple when backpacking and even car camping
Date published: 2020-05-09
Rated 5 out of 5 by from Bomber bag. I have had the Membrain version of this for years and love it. When bugs and wind permit going without a tent, this is the bag to have.
Date published: 2020-04-30
Rated 5 out of 5 by from Comfortable and long lasting I’ve had this sleeping bag for over 5 years and it’s my go to sleeping bag. It’s super comfortable and fits me well with being tall. I even can zip up my sleeping bag with my partners so we can sleep together. Even on hot days it’s nice to sleep in
Date published: 2020-04-30
Rated 3 out of 5 by from love the lightness and size, not used yet. Bought this awhile ago and hope it will keep me warm in the Sierra's!!!! Taking it on the PCT in April, 2020.
Date published: 2020-01-02
Rated 5 out of 5 by from High Quality I'm very impressed with the quality of this bag. I'm a wilderness guide and often need to sleep outside in the shoulder months when the temps dip below 32 degrees. This bag is the perfect solution to staying warm. The loft is impressive as are the features. The zipper on the right side is really nice and makes the bag similar to a quilt almost. I've been around and used a lot of gear over my years but this I can tell is a high quality piece of equipment. I'm 6' and got the long, I'm glad I did as it give me a little bit more wiggle room.
Date published: 2019-11-01
Rated 5 out of 5 by from Warm and Cozy Replaced my last down bag with this one. Sleeps super warm and comfortable for its intended temp range. Light and packable. Could easily be paired with a LW liner for sub-zero temps (given I sleep warm).
Date published: 2019-08-31
Rated 5 out of 5 by from 12 years of great service. Simply the best! Bought the helium long back in 2006 and I’ve slept an average of 30 nights a year, the bag has a few patches here and there but is still going strong and performs like new! However I’ve gained a little shoulder width in the last years and find the bag too tight so I gave the helium to my wife who loves it. I’m in the market to buy another one just wish Marmot would make the long version a little wider add interior neck baffles.
Date published: 2019-01-04
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