Description The Nemo Sonic Down Mummy Sleeping Bag is engineered for temperatures ranging from -20°F to 40°F, this Backpacker Editors’ Choice award-winning bag combines exceptional warmth with an eco-friendly design. Featuring next-generation Thermo Gill™ vents and a multistage zipper system, the Sonic allows you to fine-tune your comfort level with ease. Its chevron baffle construction prevents down migration, ensuring consistent loft and warmth. Made from 100% recycled, bluesign® approved fabrics and filled with 800 FP hydrophobic down certified by the Responsible Down Standard, this bag reflects years of field-tested improvements, including a redesigned draft collar and an innovative Toester™ footbox that keeps your feet warm and dry. Whether you’re in the backcountry or facing unpredictable weather, the Sonic sleeping bag is your go-to gear for extreme conditions, ensuring you stay comfortable and ready for whatever adventure lies ahead. Specs Weight Regular - 3 lbs 4 ozLong - 3 lbs 12 oz Pack Size Regular 13 "x 9.5" diameterLong 14" x 9.5" diameter Temperature Rating 0° ISO Comfort Rating 14F ISO Limit Rating 0F Bag Shape Mummy Insulation Type 800-fill power Fill Weight Regular - 1 lb 11 ozLong - 1 lb 13 oz Shoulder Girth Regular - 63"Long - 65" Hip Girth Regular - 58"Long - 60" Knee Girth Regular - 53"Long - 55" Water-Resistant No Material 20D 100% Recycled Nylon, Bluesign Certified Ripstop w/ DWR Manufacturer Warranty Lifetime warranty
