Winner of a 2015 Backpacker magazine Editors’ Choice Award, Sonic has been praised for being the only bag you really need from 0° F to 40° F. Adjustable Thermo Gills allow you to control the internal temperature of the bag without letting in cold drafts, extending your comfort range by 20° F or more. Stretch construction at the knees helps maintain bag shape, thermal efficiency, andloft, while offering enhanced volume so you can sleep on your side or with your knees bent. Thermo gills allow you to regulate the warmth of the bag on milder nights by as much as 20° F/11° C without letting cold drafts inside. Stretch construction at the knees offers extra volume for side sleeping but keeps the bag close to your body for thermal efficiency. The 2015 Backpacker Editors’ Choice Award Winning Sonic series of sleeping bags are built to put a smile on your face when the cold weather is keeping most people out of the mountains. Nemo used all the best ingredients of high-end fabrics and 850 fill power down insulation paired with stretch construction at the knees for side sleeping. Thermo Gills regulate the internal temperature of the bag by as much as 20° F without letting drafts in. The item “Brand New Nemo Sonic Down Sleeping Bag (0F / -18C) Regular” is in sale since Wednesday, November 02, 2016. This item is in the category “Sporting Goods\Outdoor Sports\Camping & Hiking\Outdoor Sleeping Gear\Sleeping Bags”. The seller is “platinumbeautyworld” and is located in Fullerton, California. This item can be shipped to United States.