The Nemo Sonic 0 Degree Down Sleeping bag is unmatched when it comes to warmth retention and finessing. Made with 100% recycled, bluesign approved materials, it boasts the secondgeneration of our flagship Thermo Gill vents, now with two adjustment stages for even more personalized temperature-setting. With a Toester footbox and 800 FP RDS-certified, hydrophobic down, Sonic is fine-tuned for frigid weather.
- Updated design with a multistage zipper system allows for an even wider temperature range and finetuned heat regulation.
- New chevron baffle construction better compartmentalizes down for more uniform loft and to eliminate insulation migration.
- Updated design incorporates sustainable materials throughout 100% recycled, bluesign approved fabric and 100% 800 FP RDS-certified, hydrophobic down.
- Keeps your feet warmer, protects against tent wall condensation, and protects down from moisture while drying damp clothes in the footbox
- 800 FP hydrophobic, PFC-Free
