Nemo Sonic -29C/-20F 800-Fill Down Regular Sleeping Bag
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. Our long zippered Thermo Gills™ allow you to let out excess heat without letting excess cold in. 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.