NEMO Equipment Sonic Down Mummy Sleeping Bag
$899.93
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Sonic is built to be the only bag you need from -20°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 our 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. Our 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.
All NEMO products carry a lifetime warranty against defects in workmanship and materials to the original owner.
Synthetic
Award-winning design updated for even greater warmth retention and adjustability across temperatures.
Constructed with 100% recycled, bluesign approved shell and liner fabrics.
Second-generation Thermo Gill vents extend the comfort range with a new multistage zipper system.
Overstuffed with premium 800 FP hydrophobic down that is PFC-Free and 100% Responsible Down Standard (RDS) certified, ensuring humane treatment and traceability throughout the supply chain.
Chevron baffle construction better compartmentalizes down for more uniform loft and down migration prevention.
Frequently Asked Questions
We currently ship to customers throughout the United States.
Most orders are delivered within 3–7 business days. Delivery times may vary depending on your location and carrier conditions.
Once your order has shipped, you’ll receive a confirmation email with your tracking number.
Please contact us as soon as possible at [nextrony365@gmail.com] Changes or cancellations are only possible before your order has been processed or shipped.
Yes. Eligible items may be returned in accordance with our Return & Refund Policy. For assistance, please contact us at [nextrony365@gmail.com]
Once your return is received and approved, your refund will be issued to your original payment method.
Please email us at [nextrony365@gmail.com] with your order number and clear photos of the item. We’ll be happy to assist you.
For any questions about your order, shipping, returns, or products, please contact us at [nextrony365@gmail.com]
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