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We know that winter camping can be intimidating, mainly due to low temps and the cost of the gear that’s supposed to keep you warm. But the Cosmic 0°F is one of the rare sleeping bags that will get the job done at an attractive price, and now it’s on sale for 40 percent off on Kelty’s site. Its 600-fill down may not pack down as small as competitors, but the Cosmic offers plenty of warmth on frigid nights. Plus, it’s hard to turn down a 0°F bag—usually a luxury item in any backpacker’s kit—when it’s offered this cheap. Buy the Kelty Cosmic 0°F now for $208 (20% off).