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BTU -20
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BTU -20
Item Number: 00591312
 $559.95 
Qualifies for FREE GROUND SHIPPING
Who wants to camp in -20ºF degree weather? We do! The 4-season BTU -20 has been updated for 2012 and reconstructed to keep you toasty warm even as the mercury drops. 800-fill goose down provides maximum warmth to weight ratio. Drizone™ waterproof breathable shell fabric ensures that regardless of the weather, your bag will remain dry and you will sleep soundly!

Sierra Designs’ 100% nylon Drizone™ waterproof/breathable fabric does a superb job of sealing out wind, rain, and snow while venting internal moisture, helping you stay dry, comfortable and protected in any type of weather.  Sierra Designs selects 2-layer, 2.5-layer, and 3-layer Drizone™ fabrics for different equipment pieces to provide the best blend of weather protection and moisture management for any activity.
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  • Side-wall, box baffle construction
  • Oversized, ergonomically shaped footbox
  • Microfleece lined foot box
  • Snag-free zipper tracks
  • Internal media pocket
  • Corded hood baffle
  • Draw cord at collar
  • Expedition Jacket Hood™
  • Draft collar
  • Drizone™ waterproof-breathable shell
  • Anti-microbial liner treatment reduces odor over long uses
  • Zipper draft tube
  • Tuck Stitch construction
  • Includes storage and compression stuff sacks
  • Easy access, ventable, 40 inch zipper

Temp Rating: -20° / -29°C
Shape: Mummy

Size Short:

  • Fits to: 5 ft 6 in / 168 cm                                   
  • Length: 72 in / 183 cm
  • Zipper Side: Left
  • Shoulder girth: 60 in / 152 cm
  • Hip girth: 56 in / 142 cm
  • Footbox: 41 in / 104 cm
  • Fill weight: 36 oz / 1.0 kg
  • Total weight: 3 lbs 13 oz / 1.7 kg
  • Stuffed diameter: 9 in / 23 cm
  • Stuffed length: 19 in / 48 cm

Size Regular:

  • Fits to: 6 ft / 183 cm                                   
  • Length: 78 in / 198 cm
  • Zipper Side: Left
  • Shoulder girth: 64 in / 163 cm
  • Hip girth: 60 in / 152 cm
  • Footbox: 43 in / 109 cm
  • Fill weight: 38 oz / 1.1 kg
  • Total weight: 4 lbs 3 oz / 1.8 kg
  • Stuffed diameter: 10 in / 25 cm
  • Stuffed length: 20 in / 51 cm

Size Long:

  • Fits to: 6 ft 6 in / 198 cm
  • Length: 84 in / 213 cm
  • Zipper Side: Left
  • Shoulder girth: 66 in / 168 cm
  • Hip girth: 62 in / 157 cm
  • Footbox: 43 in / 109 cm
  • Fill weight: 40 oz / 1.1 kg
  • Total weight: 4 lbs 7 oz / 2.0 kg
  • Stuffed diameter: 10 in / 25 cm
  • Stuffed length: 20 in / 51 cm

Insulation:
800 Fill-Power Goose Down

Shell material:
40D Drizone™ Waterproof/Breathable Nylon Ripstop 

Liner material:
30D Polyester

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BTU -20
Sierra Designs Sleeping Bags: Btu