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Long praised as the only bag you need from -20 to 40 Fahrenheit, the NEMO Sonic gets updated for even greater warmth retention and tuneability while incorporating 100% recycled, bluesign certified materials for sustainability and stewardship. Updated Thermo Gills, Toester footbox, and over-stuffed with 100% 800FP RDS certified, hydrophobic down, Sonic is fine-tuned for frigid weather and environmentallyconscious adventure.

• Multi-stage zipper system allows for an even wider temperature range and fine tuned heat regulation
• Chevron baffle construction better compartmentalizes down for more uniform loft and to eliminate insulation migration
• Sustainable materials throughout 100% recycled, bluesign certified fabric and 100% 800FP RDS certified, hydrophobic down
• Toester waterproof/breathable footbox relies on an additional layer of synthetic insulation to reduce cold spots
• Adjustable Thermo Gills vent body heat at your core without letting cold air rush in.