The Backpacker Editor’s Choice Award Winning Sonic™ has been praised as the only bag you really need from -20 to 40 degrees. Now updated for 2019 with a redesigned draft collar and draft tubes to create a secure seal against cold air; overstuffed 800FP hydrophobic, RDS certified down; and an updated profile and shaped footbox, the Sonic™ continues to rock out as the King of Comfort from basecamp to summit.
The contoured hood with drawstring cord creates maxiumum thermal efficiency, and stretch construction at the knees allows side sleeping. Toester™ footbox is tailored for foot comfort, waterproof/breathable, and includes a layer of synthetic insulation to reduce cold spots.
Weight (Reg): 1.36kg / 3.0lbs
Fill: 800 Fill Power Hydrophobic RDS Down
Award-winning design allows for temperature regulation in variable mountain climates.
Adjustable Thermo Gills™ vent body heat at your core without letting cold air rush in.
Stretch construction at the knees allows side sleeping.
Overstuffed with 800FP hydrophobic down that is 100% Responsible Down Standard (RDS) Certified ensuring humane treatment and traceability throughout the supply chain.
Redesigned draft collar and draft tubescreate a secure seal to keep cold air out.
Redesigned Toester™ waterproof/breathable footbox relies on an additional layer of synthetic insulation to reduce cold spots.
Offset zipper creates a thermally efficient seal.
Updated profile secures warmth closer to the body.
Protected by the NEMO Lifetime Warranty.
Compression stuff sack
Mesh storage bag
|Minimum Weight||1.29kg / 2.88lb||1.36kg / 3.0lbs||1.41kg / 3.13lbs|
|Packed Size||38 x 20 cm / 15.0x8.0"||39 x 20cm / 15.5x8.0"||41 x 22cm / 16.0x8.5"|
|Temp Rating||0F / -18C||0F / -18C||0F / -18C|
|Fill Type||800FP Down||800FP Down||800FP Down|
|Fill Weight||700g / 1.54lbs||720g / 1.56lbs||760g / 1.68lbs|
|Fits Up To||168cm / 5'6"||183 cm/ 6'||198cm / 6'6"|
|Shoulder Girth||47cm / 58"||155cm / 61"||175cm / 69"|
|Hip Girth||56 in / 142 cm||58 in / 147 cm||63 in / 160 cm|
|Knee Girth||52 in / 132 cm||53 in / 135 cm||56 in / 142 cm|
Shell Fabric 20D Nylon Ripstop w/ DWR
Footbox Fabric 40D Nylon Ripstop OSMO™ w/ DWR
Lining Fabric 30D Nylon Taffeta w/ DWR
Color Granite / Sunburst Yellow
Zipper Location Left
Stuff Sack Compression stuff sack, Mesh storage bag
Insulation 800 FP Down
NEMO | Sonic Down Sleeping Bag
Thermo™ Gills allow you to regulate this zero degree bag on milder nights by as much as 20°F/11°C without letting cold drafts inside. • Stretch construction at the knees offers extra volume for side sleeping but keeps the bag close to your body for thermal efficiency. • Premium fabrics and 850 fill power down manage moisture and provide maximum warmth and compressibility. • Available in 0 and 15 degree temperature ratings.