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This product is no longer available, but don't go just yet.


  • Regular down takes on water and is very difficult to dry; through the DriDown proprietary process, each individual down plume is treated with a hydrophobic finish
  • With the down now resistant to water, the insulation maintains its loft and stays dry 7 times longer than untreated down
  • It also performs better in high humidity than regular down, and in case it accidentally gets wet, it will dry out faster, too
  • Lightweight yet durable 30-denier micro-ripstop polyester shell and comfortable, moisture-wicking polyester lining warms up fast
  • Baffle construction keeps down from migrating, eliminating cold spots
  • Full-length 2-way, double sliding zipper allows easy venting; locking slider is backed by wide, antisnag binding tape
  • Snag-free zipper tracks prevent the dreaded stuck zipper by creating a barrier between the lining and the zipper track
  • Fully insulated draft tube backing the zipper keeps body heat in and cold air out
  • Ergonomic, nonrestrictive hood cradles your head in warmth; hood features differentiated drawcords that make fit adjustments easy, even in the dark
  • Roomy, ergonomically shaped footbox enhances comfort and warmth of feet
  • Sierra Designs Zissou +0°F Hi comes with stuff sack and storage bag
  • European Norm (EN) is an independent third-party temperature rating, allowing accurate comparisons across brands with other EN-rated bags


View all Sierra Designs Men's Sleeping Bags

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Best Use Backpacking
EN Lower Limit 6 degrees Fahrenheit
EN Comfort 19 degrees Fahrenheit
Temperature Rating (F) 6 degrees Fahrenheit
Temperature Rating (C) -14 degrees Celsius
Weight 3 lbs. 1 oz. / 3 lbs. 4 oz.
Shell Polyester ripstop
Insulation Type Down
Fill 600-fill down
Fill Weight 33 / 35
Lining Polyester
Sleeping Bag Shape Mummy
Fits Up To (in.) 72 / 78 inches
Shoulder Girth (in.) 62 / 64 inches
Hip Girth (in.) 58 / 60 inches
Stuff Sack Size 9 x 17 inches
Stuff Sack Volume 18 liter
Gender Unisex
Weight - Metric 1.38 / 1.47 kilograms

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