Sonic is built to be the only bag you need from 0°F to 40°F. The Backpacker Editors’ Choice award-winning big-mountain bag offers exceptional warmth and tuneability with a reduced environmental impact. This bag features Nemo's next-generation Thermo Gill™ vents, with a new multistage zipper system that dramatically increases the usable temperature range of the bag and allows fine-tuning of comfort from within. Sonic’s chevron baffle construction better compartmentalizes down, eliminating migration and keeping the down evenly lofted. (Not to mention, it looks awesome.)
The shell and liner fabrics are 100% recycled fabrics and bluesign® approved, and the premium 800 FP hydrophobic down is 100% Responsible Down Standard (RDS) certified. Years of history in the field yielded detailed upgrades on this bag, including a perfected profile, redesigned draft collar, and bolstered draft tubes. Nemo's proven Toester™ footbox keeps feet warmer, provides a waterproof barrier against tent wall condensation, and protects down from moisture while drying damp clothes inside the footbox. Adaptable to whatever the mountain throws at it, Sonic continues to reverberate as the ultimate extreme weather companion.
Features
Fit Specifications
0°F / Short | 0°F / Regular | 0°F / Long | -20°F / Regular | -20°F / Long | |
---|---|---|---|---|---|
Fits Up To | 5'6" / 168 cm | 6' / 183 cm | 6'6" / 198 cm | 6' / 183 cm | 6'6" / 198 cm |
Shoulder Girth | 61 in / 155 cm | 63 in / 160 cm | 65 in / 165 cm | 63 in / 160 cm | 65 in / 165 cm |
Hip Girth | 56 in / 142 cm | 58 in / 147 cm | 60 in / 153 cm | 58 in / 147 cm | 60 in / 153 cm |
Knee Girth | 51 in / 130 cm | 53 in / 135 cm | 55 in / 140 cm | 53 in / 135 cm | 55 in / 140 cm |
Zipper Location | Left | Left | Left | Left | Left |
Package Specifications
0°F / Short | 0°F / Regular | 0°F / Long | -20°F / Regular | -20°F / Long | |
---|---|---|---|---|---|
Minimum Weight | 3 lb , 2 oz / 1.42 kg | 3 lb , 4 oz / 1.47 kg | 3 lb , 9 oz / 1.62 kg | 3 lb , 14 oz / 1.76 kg | 4 lb , 3 oz / 1.9 kg |
Packed Size | 13.0 x 9.5 in dia / 33 x 24 cm dia | 13.5 x 9.5 in dia / 34 x 24 cm dia | 14.0 x 9.5 in dia / 36 x 24 cm dia | 14.5 x 10.5 in dia / 37 x 27 cm dia | 15.5 x 10.5 in dia / 39 x 27 cm dia |
Compressed Volume | 8.9 L | 9.6 L | 9.9 L | 9.6 L | 9.9 L |
Ratings and Materials
0°F / Short | 0°F / Regular | 0°F / Long | -20°F / Regular | -20°F / Long | |
---|---|---|---|---|---|
Temp Rating | 0F / -18C | 0F / -18C | 0F / -18C | -20F / -29C | -20F / -29C |
ISO Comfort | 14F / -10C | 14F / -10C | 14F / -10C | - | - |
Insulation | Down | Down | Down | Down | Down |
Fill Type | 800 FP Down | 800 FP Down | 800 FP Down | 800 FP Down | 800 FP Down |
Fill Weight | 1 lb , 11 oz / 770 g | 1 lb , 12 oz / 790 g | 1 lb , 13 oz / 835 g | 2 lb , 5 oz / 1.06 kg | 2 lb , 8 oz / 1.12 kg |
Shell Fabric | 100% Recycled Nylon, Bluesign Certified | 100% Recycled Nylon, Bluesign Certified | 100% Recycled Nylon, Bluesign Certified | 100% Recycled Nylon, Bluesign Certified | 100% Recycled Nylon, Bluesign Certified |
Footbox Fabric | 100% Recycled Nylon, Bluesign Certified | 100% Recycled Nylon, Bluesign Certified | 100% Recycled Nylon, Bluesign Certified | 100% Recycled Nylon, Bluesign Certified | 100% Recycled Nylon, Bluesign Certified |
Lining Fabric | 100% Recycled Polyester, Bluesign Certified | 100% Recycled Polyester, Bluesign Certified | 100% Recycled Polyester, Bluesign Certified | 100% Recycled Polyester, Bluesign Certified | 100% Recycled Polyester, Bluesign Certified |