What Our Gearhead(R) Experts Are Saying: "I used the Cloudlite on a high Sierra traverse and couldn't believe how warm it stayed given the weight. It packs down to the size of a loaf of bread and feels like sleeping in a down cloud-perfect for fastpacking and thru-hiking." We count ounces when the miles stretch long, and the Western Mountaineering Cloudlite Sleeping Bag: 15F Down helps us do it without sacrificing warmth. Engineered for fast-and-light missions, this bag weighs just over 2 pounds and boasts 5. 5 inches of loft with premium 850+ fill-power goose down to keep us cozy when temps drop below freezing. Crafted in the USA with breathable, ultralight ExtremeLite(TM) fabric, the Cloudlite compresses down small and rebounds loft in seconds once unrolled. Whether we're bikepacking through shoulder-season routes or thru-hiking in variable alpine weather, this bag's mummy shape, soft taffeta lining, and exceptional insulation-to-weight ratio keep us dialed in for every backcountry sleep system.