Stay warm and comfortable on your next outdoor adventure with this down mummy sleeping bag. Filled with 1.1 lbs of selected duck down with 600 fill power, it provides excellent warmth retention without added weight. The 400T tear-resistant nylon fabric is ultra-high-density, offering waterproof and windproof performance while preventing down overflow. Designed for three-season use, this sleeping bag is lightweight and compact, making it easy to carry in your backpack. The mummy shape with a wide trapezoidal foot box ensures a snug yet comfortable fit, and the left and right zippers allow you to connect two bags for a two-person setup. Perfect for camping, backpacking, hiking, and more.