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Sorry!  This item Is out of stock.  ( Sierra Designs - Synthesis 20D Synthetic Sleeping Bag )

Sierra Designs -  Synthesis 20D Synthetic Sleeping Bag

Availability: Out of stock

Stock #: HN4E-
Shop all in stock - Synthetic


Built with synthetic insulation and lightweight material typically reserved for a higher price point, the Synthesis packs light but hits heavy with its feature set. A dual zipper system makes getting in and out a breeze and gives you room to move about, while the self sealing foot vent lets you vent heat with ease.


  • Synthetic insulation provides lofty warmth, even when wet
  • Dual zipper system for ease of use
  • Patented self-sealing foot vents for fast and easy ventilation
  • Draft dodger collar helps prevent drafts
  • 20D nylon fabric for lightweight versatility


  • Insulation: Synthetic
  • Shell Fabric: 20d Nylon ripstop
  • Liner Fabric: 20d Nylon Taffeta

WARNING: This product can expose you to chemicals known to the State of California to cause cancer, birth defects, or reproductive harm. For more information, go to

Additional Information

Material 20d Nylon ripstop (Shell)
Temp Rating Comfort rating 31
Length 76" (Regular), 82" (Long)
Shoulder Girth 62" (Regular),64" (Long)
Hip Girth 56" (Regular), 58" (Long)
Foot Girth 40" (Regular), 42" (Long)
Packed Size 15 x 7.5" (Regular), 15 x 7.5" (Long)
Weight 2lb 9oz (Regular), 2lbs 12oz (Long)