Description ShowDescription Nemo’s award-winning Sonic is updated to make a good bag better, with a few extra features to ensure you get a great night’s sleep. A redesigned collar and hood seal out cold and retain warmth where you need it. Stretch stitching at the knees maximizes internal volume and make side-sleeping easier in this form-fitting mummy bag. Thermo Gills™ allow you to dial-in the perfect temperature when you're warm, but the air outside is too cold to unzip – like cracking a widow. Overstuffed with 800 fill-power hydrophobic down to offer serious warmth in serious weather. Shell is ripstop nylon with soft nylon taffeta lining, both treated with a DWR finish. Zippered Thermo Gills let you release extra body heat without letting cold air in. 800 fill-power Nikwax Hydrophobic Down™ won't wet-out, staying lofty and warm in all conditions. Horizontal and vertical baffles channel warmth along your body, reducing cold sports. Hood provides a close fit, keeping your noggin warm on cold nights. Internal draft collar helps seal in the heat. Stretch stitching at the knees helps maintain shape while increasing thermal efficiency and optimizing volume. Toester™ waterproof-breathable footbox has a DWR finish. On-seam zippered pockets for small necessities. Included compression sack and cotton home storage sack. Covered by Nemo’s lifetime warranty.
