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Down Hugger 900 #2

Style #2321188

  • 25℉
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Price: $559.00 $447.20

Member Points: 1,341

By adopting a classic tailor's trick and paring it with only the best materials available MontBell has brought extreme comfort and thermal efficiency to the ultralight world. We found that integrating a woven fabric "cut on the bias" and orienting the fabric's warp and weft threads at 45 degrees to most major seam lines the sleeping bag becomes more fluid in nature. To create an even more comfortable system we utilize an elasticized thread in the stitch to create small "gathers" in the quilting. Through the combination of strategic seam orientation and the stretch provided by gathered quilting we offer unrivaled fit and comfort. These innovations allow the sleeping bag to move with you as you change positions throughout the night, drawing the premium 900 fill goose down closer to your body and eliminating drafty dead spaces. Keep body heat inside your sleeping bag, where it belongs. *Backpacker Editors' Choice Award 2014


BK (Black)





Updated 04/05/20 18:15 (EST)


  • Super Spiral Stretch System (US. Patent NO. 7,900,301)
  • Multi-Tube Construction with Flow Gate technology
  • Draw cord for face hole adjustment
  • Neck Baffle: a shoulder collar minimizes air circulation through the top of the bag
  • Dual insulated zipper draft tubes
  • Auto Locking Zipper to limit zipper ”slip” during the night
  • 2-way, 67 in.(170cm) mating right hand zipper ONLY
  • Tapered, bias stretch stuff sack for easier packing included
  • Storage sack included


Weight1lb. 8 oz. (690 g)
Fill weight12 oz. (340 g)
Insulation900 Fill Power EX Down
Fabric8-denier Ballistic Airlight Nylon
Compressed size∅5.9 x 11.7 in. (∅15 x 30 cm), 4.2 L
Country of originCHINA
Other[EN TESTED] 34℉/1℃ (Comfort), 23℉/-5℃ (Lower Limit), -7℉/-22℃ (Extreme)
* We do not advise consumers to reference the extreme rating for general use.

[Max User Height] 6' / 183cm
[Shoulder Girth] 53"-75" / 136 cm - 191 cm
[Knee Girth] 44"-62" / 112 cm - 158 cm

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Actual color may vary.

"Editors' Choice 2014" review from Backpacker.com

Innovative sewing techniques deliver a whole new level of ultralight comfort.

super spiral stretch system


Super Spiral-Stretch System (US.Patent No.7,900,301)
Offering sweet dreams with superior stretch and comfort for all shapes and sizes

Montbell has adapted a classic tailor’s trick by integrating a woven fabric “cut on the bias”. By orienting the fabric’s warp and weft threads at 45 degrees to most major seam lines the sleeping bag becomes more fluid or elastic in nature. Additionally, to create an even more comfortable system we utilize an elastic stitch technique to create small “gathers” in the quilting. By combining the strategic seam orientation and the elasticized gathers we offer unrivaled fit and comfort.


Our sewing lines utilize an elasticized thread to create gathers in the quilting that draw insulation closer to your body and minimize drafty dead spaces.

The greatest benefit to using elasticized sewing lines would be the “stretchy” nature of the baffles. These flexible baffles allow our sleeping bags to move with you as you change positions throughout the night.

Woven fabrics typically do not stretch vertically or horizontally without the utilization of heavy elastic materials. However, when stressed along the diagonal the same fabric will show stretch characteristics.


900 Fill Power Down


Fill power (or loftiness) refers to the volume in cubic inches that 1 ounce of down will displace. The higher the fill power, the less down is needed to achieve a given thermal profile. All other things being equal (fabric, construction method, and fill amount), a product made with high fill power down (900) is lighter and more compressible than an equally warm one made with lower quality down (550).



An elite water-repellent technology, POLKATEX® DWR protects insulation from light moisture and helps maintain warmth.

EN 13537


Down Sourcing


At Montbell, we source down from both the European and Asian markets to satisfy a variety of characteristics (supply/availability, low cost, consistent quality, humane practices, etc.) and maintain our lofty standards. Every season we seek to balance the superior quality for which we are known and the lowest possible raw materials cost. We change down sourcing companies frequently to insure that our customers have access to superior products at the lowest price possible. In the course of these efforts, Montbell never purchases down from operations that practice “live-plucking” methods. We only utilize down plumes and feathers collected as a by-product of water fowl raised to meet the demands of the food industry.

We will continue to look for sources of down that maximize value to our customers and allow Montbell products to perform at the highest level.

Down Hugger 900 series

The history and evolution of montbell sleeping bags

The Super Spiral Stretch Series